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Microwave-Modified Sol-Gel Preparation of CaLa2(MoO4)4:Er3+/Yb3+ Upconversion Phosphors and The Crystal Structure Refinement / V. V. Atuchin [и др.] // The 8th Conference on Multi-functional Materials and Applications (ICMMA 2014). - 2014 . - Ст. Poster 04-P. - P84-86

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Доп.точки доступа:
Atuchin, V. V.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Ji Myung Jang; Yong Woo Yoon; Dong Min Won; Lei Zhu; Chang Sung Lim ; Conference on Multi-functional Materials and Applications, (8 ; 2014 ; Nov. ; 27-29 ; Chungnam, Korea)
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Crystal structure refinement and upconversion properties of CaGd2(MoO4)4:Er3+/Yb3+ particles synthesized by the microwave-modified sol-gel method / V. V . Atuchin [и др.] // The 8th Conference on Multi-functional Materials and Applications (ICMMA 2014). - 2014 . - Ст. Poster 05-P. - P87-89

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Доп.точки доступа:
Atuchin, V. V.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Ji Myung Jang; Yong Woo Yoon; Dong Min Won; Lei Zhu; Chang Sung Lim ; Conference on Multi-functional Materials and Applications, (8 ; 2014 ; Nov. ; 27-29 ; Chungnam, Korea)
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Microwave sol–gel synthesis and upconversion photoluminescence properties of CaGd2(WO4)4:Er3+/Yb3+ phosphors with incommensurately modulated structure / C. S. Lim [et al.] // J. Solid State Chem. - 2015. - Vol. 228. - P. 160-166, DOI 10.1016/j.jssc.2015.04.032. - Cited References:70. - This study was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (2014-046024). VVA, ASA and ASO are partially supported by the Ministry of Education and Science of the Russian Federation. . - ISSN 0022. - ISSN 1095-726X. -

РУБ Chemistry, Inorganic & Nuclear + Chemistry, Physical
Рубрики:
CORE-LEVEL SPECTROSCOPY
LUMINESCENCE PROPERTIES
WHITE-LIGHT
Кл.слова (ненормированные):
Double tungstate -- Microwave sol-gel -- Upconversion -- XRD refinement -- Raman
Аннотация: CaGd2−x(WO4)4:Er3+/Yb3+ phosphors with the doping concentrations of Er3+ and Yb3+ (x=Er3++Yb3+, Er3+=0.05, 0.1, 0.2 and Yb3+=0.2, 0.45) have been successfully synthesized by the microwave sol–gel method. The crystal structure of CaGd2−x(WO4)4:Er3+/Yb3+ tungstates have been refined, and upconversion photoluminescence properties have been investigated. The synthesized particles, being formed after the heat-treatment at 900 °C for 16 h, showed a well crystallized morphology. Under the excitation at 980 nm, CaGd2(WO4)4:Er3+/Yb3+ particles exhibited a strong 525-nm and a weak 550-nm emission bands in the green region and a very weak 655-nm emission band in the red region. The Raman spectrum of undoped CaGd2(WO4)4 revealed about 12 narrow lines. The strongest band observed at 903 cm−1 was assigned to the ν1 symmetric stretching vibration of WO4 tetrahedrons. The spectra of the samples doped with Er and Yb obtained under the 514.5 nm excitation were dominated by Er3+ luminescence preventing the recording of these samples Raman spectra. Concentration quenching of the erbium luminescence at 2H11/2→4I15/2 transition is weak in the range of erbium doping level xEr=0.05–0.2, while, for transition 4S3/2→4I15/2, the signs of concentration quenching become pronounced at xEr=0.2.

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Держатели документа:
Hanseo Univ, Dept Adv Mat Sci & Engn, Seosan 356706, South Korea.
SB RAS, LV Kirensky Phys Inst, Lab Coherent Opt, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Dept Photon & Laser Technol, Krasnoyarsk 660079, Russia.
SB RAS, LV Kirensky Phys Inst, Lab Crystal Phys, Krasnoyarsk 660036, Russia.
Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia.
SB RAS, LV Kirensky Phys Inst, Lab Mol Spect, Krasnoyarsk 660036, Russia.
SB RAS, Inst Semicond Phys, Lab Opt Mat & Struct, Novosibirsk 630090, Russia.
Tomsk State Univ, Funct Elect Lab, Tomsk 634050, Russia.
Novosibirsk State Univ, Lab Semicond & Dielect Mat, Novosibirsk 630090, Russia.

Доп.точки доступа:
Lim, Chang Sung; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Atuchin, V. V.; Атучин, Виктор Валерьевич
}
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    The modulated structure and frequency upconversion properties of CaLa2(MoO4)4:Ho3+/Yb3+ phosphors prepared by microwave synthesis / C. S. Lim [et al.] // Phys. Chem. Chem. Phys. - 2015. - Vol. 17, Is. 29. - P. 19278-19287, DOI 10.1039/c5cp03054d. - Cited References: 63. - This study was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (2014-046024). VVA, ASA and ASO are partially supported by the Ministry of Education and Science of the Russian Federation. . - ISSN 1463-9076
   Перевод заглавия: Модулированная структура и частотные свойства апконверсии люминофора CaLa2(MoO4)4:Ho3+/Yb3+ приготовленного микроволновым синтезом

РУБ Chemistry, Physical + Physics, Atomic, Molecular & Chemical

Аннотация: CaLa2−x(MoO4)4:Ho3+/Yb3+ phosphors with the doping concentrations of Ho3+ and Yb3+ (x = Ho3+ + Yb3+, Ho3+ = 0.05; Yb3+ = 0.35, 0.40, 0.45 and 0.50) have been successfully synthesized by the microwave sol–gel method. The modulated and averaged crystal structures of CaLa2−x(MoO4)4:Ho3+/Yb3+ molybdates have been found by the Rietveld method, and the upconversion photoluminescence properties have been investigated. The synthesized particles, being formed after the heat-treatment at 900 °C for 16 h, showed a highly crystallized state. Under the excitation at 980 nm, CaLa2−x(MoO4)4:Ho3+/Yb3+ particles exhibited strong 545 and 655 nm emission bands in the green and red regions. When the Yb3+:Ho3+ ratios are 9:1 and 10:1, the UC intensity of CaLa1.5(MoO4)4:Yb0.45/Ho0.05 and CaLa1.45(MoO4)4:Yb0.50/Ho0.05 particles is the highest for different bands. The CIE coordinates calculated for CaLa2−x(MoO4)4:Ho3+/Yb3+ phosphors are related to the yellow color field. The Raman spectrum of undoped CaLa2(MoO4)4 has revealed about 13 narrow lines. The strongest band observed at 906 cm−1 was assigned to the ν1 symmetric stretching vibration of MoO4 tetrahedra. The spectra of the samples doped with Ho and Yb, as obtained under the 514.5 nm excitation, were dominated by Ho3+ luminescence over the wavenumber range of 700 cm−1 preventing the recording of the Raman spectra.

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Держатели документа:
Department of Advanced Materials Science and Engineering, Hanseo University, Seosan, South Korea
Laboratory of Coherent Optics, Kirensky Institute of Physics, SB RAS, Krasnoyarsk, Russian Federation
Department of Photonics and Laser Technologies, Siberian Federal University, Krasnoyarsk, Russian Federation
Laboratory of Crystal Physics, Kirensky Institute of Physics, SB RAS, Krasnoyarsk, Russian Federation
Department of Physics, Far Eastern State Transport University, Khabarovsk, Russian Federation
Laboratory of Molecular Spectroscopy, Kirensky Institute of Physics, SB RAS, Krasnoyarsk, Russian Federation
Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, SB RAS, Novosibirsk, Russian Federation
Functional Electronics Laboratory, Tomsk State University, Tomsk, Russian Federation
Laboratory of Semiconductor and Dielectric Materials, Novosibirsk State University, Novosibirsk, Russian Federation

Доп.точки доступа:
Lim, C. S.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Atuchin, V. V.
}
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    Microwave sol–gel synthesis of CaGd2(MoO4)4:Er3+/Yb3+ phosphors and their upconversion photoluminescence properties / C. S. Lim [et al.] // J. Am. Ceram. Soc. - 2015. - Vol. 98, Is. 10. - P. 3223-3230, DOI 10.1111/jace.13739. - Cited References:69. - This study was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (2014-046024). VVA and ASA are partially supported by the Ministry of Education and Science of the Russian Federation. . - ISSN 0002. - ISSN 1551-2916
   Перевод заглавия: Микроволновый золь-гель синтез люминофоров CaGd2(MoO4)4:Er3+/Yb3+ и их люминесцентные свойства с апконверсией

РУБ Materials Science, Ceramics
Рубрики:
RED-EMITTING PHOSPHORS
   VIBRATIONAL PROPERTIES
   LUMINESCENCE PROPERTIES
   WHITE LEDS
   SPECTROSCOPIC PROPERTIES
   HYDROTHERMAL SYNTHESIS
   CRYSTAL-STRUCTURE
   ROOM-TEMPERATURE
   ENERGY-TRANSFER
   SR
Аннотация: CaGd2(MoO4)4:Er3+/Yb3+ phosphors with the doping concentrations of Er3+ and Yb3+ (x = Er3+ + Yb3+, Er3+ = 0.05, 0.1, 0.2, and Yb3+ = 0.2, 0.45) have been successfully synthesized by the microwave sol–gel method, and the crystal structure refinement and upconversion photoluminescence properties have been investigated. The synthesized particles, being formed after heat-treatment at 900°C for 16 h, showed a well-crystallized morphology. Under the excitation at 980 nm, CaGd2(MoO4)4:Er3+/Yb3+ particles exhibited strong 525 and 550-nm emission bands in the green region and a weak 655-nm emission band in the red region. The Raman spectrum of undoped CaGd2(MoO4)4 revealed about 15 narrow lines. The strongest band observed at 903 cm−1 was assigned to the ν1 symmetric stretching vibration of MoO4 tetrahedrons. The spectra of the samples doped with Er and Yb obtained under 514.5 nm excitation were dominated by Er3+ luminescence preventing the recording Raman spectra of these samples. Concentration quenching of the erbium luminescence at 2H11/2→4I15/2 and 4S3/2→4I15/2 transitions in the CaGd2(MoO4)4:Er3+/Yb3+ crystal structure was established to be approximately at the 10 at.% doping level.

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Держатели документа:
Hanseo Univ, Dept Adv Mat Sci & Engn, Seosan 356706, South Korea.
SB RAS, Inst Semicond Phys, Lab Opt Mat & Struct, Novosibirsk 630090, Russia.
Tomsk State Univ, Funct Elect Lab, Tomsk 634050, Russia.
Novosibirsk State Univ, Lab Semicond & Dielect Mat, Novosibirsk 630090, Russia.
SB RAS, Kirensky Inst Phys, Lab Coherent Opt, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Dept Photon & Laser Technol, Krasnoyarsk 660079, Russia.
SB RAS, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia.
Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia.
SB RAS, Kirensky Inst Phys, Lab Mol Spect, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Lim, Chang Sung; Atuchin, V. V.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Oreshonkov, A. S.; Орешонков, Александр Сергеевич
}
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    Preparation of NaSrLa(WO4)3:Ho3+/Yb3+ ternary tungstates and their upconversion photoluminescence properties / C. S. Lim [et al.] // Mater. Lett. - 2016. - Vol. 181. - P. 38-41, DOI 10.1016/j.matlet.2016.05.121. - Cited References: 24. - This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2015-058813), SB RAS Program No.II.2P (No. 0358-2015-0012) and Russian Foundation for Basic Research (15-52-53080). . - ISSN 0167-577X
   Перевод заглавия: Синтез тройных вольфраматов NaSrLa1-x(WO4)3:Ho3+/Yb3+ и их апконверсионные люминесцентные свойства

РУБ Materials Science, Multidisciplinary + Physics, Applied
Рубрики:
VIBRATIONAL PROPERTIES
   LUMINESCENCE PROPERTIES
   MODULATED STRUCTURE
   PHOSPHORS
   CRYSTAL
   RED
Кл.слова (ненормированные):
Tungstate -- Phosphor -- Sol-gel preparation -- Luminescence -- Raman spectroscopy -- XRD
Аннотация: NaSrLa1-x(WO4)3:Ho3+/Yb3+ ternary tungstates were synthesized via microwave sol-gel route. Well-crystallized particles with particle sizes of 2-5 ?m were obtained after heat-treatment at 900 °C for 16 h. Under the excitation at 980 nm, the particles showed yellow emissions based on the strong 545 and 655 nm emission bands. The preferable Yb3+:Ho3+ ratio was obtained to be 9:1. Raman spectra of the doped particles indicated the presence of strong Ho3+ luminescence lines. The pump power dependence and Commission Internationale de L'Eclairage chromaticity of the upconversion emission intensity were evaluated. © 2016 Published by Elsevier B.V.

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Держатели документа:
Department of Advanced Materials Science and Engineering, Hanseo University, Seosan, South Korea
Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, SB RAS, Novosibirsk, Russian Federation
Functional Electronics Laboratory, Tomsk State University, Tomsk, Russian Federation
Laboratory of Semiconductor and Dielectric Materials, Novosibirsk State University, Novosibirsk, Russian Federation
Laboratory of Coherent Optics, Kirensky Institute of Physics, SB RAS, Krasnoyarsk, Russian Federation
Laboratory of Crystal Physics, Kirensky Institute of Physics, SB RAS, Krasnoyarsk, Russian Federation
Department of Physics, Far Eastern State Transport University, Khabarovsk, Russian Federation

Доп.точки доступа:
Lim, C. S.; Atuchin, V. V.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Molokeev, M. S.; Молокеев, Максим Сергеевич
}
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Makarov, N. P.
Effective upconversion of CO2-laser radiation in sodium vapors / N. P. Ьakarov, A. K. Popov, V. P. Timofeev // Appl. Phys. B. - 1983. - Vol. 30, Is. 1. - P. 53-55, DOI 10.1007/BF00692659. - Cited References: 17 . - ISSN 0721-7269

РУБ Physics, Applied

Кл.слова (ненормированные):
42.65 -- 42.80 -- LASERS, CARBON DIOXIDE -- SODIUM AND ALLOYS -- LIGHT

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Scopus
Держатели документа:
Siberian Branch, L. V. Kirensky Institute of Physics, USSR Academy of Sciences, Krasnoyarsk, SU-660036, Russia

Доп.точки доступа:
Popov, A. K.; Попов, Александр Кузьмич; Timofeev, V. P.
}
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    Upconversion luminescence Of CsScF4 crystals doped with erbium and ytterbium / D. A. Ikonnikov [и др.] // ICONO/LAT 2016 : conference program. - 2016. - Ст. LTuH3
   Перевод заглавия: Апконверсонная люминесценция CsScF4, активированного эрбием и иттербием

Материалы конференции,
Материалы конференции

Доп.точки доступа:
Ikonnikov, D. A.; Voronov, V. N.; Воронов, Владимир Николаевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; International Conference on Coherent and Nonlinear Optics(2016 ; Sept. ; 26-30 ; Minsk, Belarus); International Conference on Lasers, Applications, and Technologies(2016 ; Sept. ; 26-30 ; Minsk, Belarus)
}
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    Triple molybdate scheelite-type upconversion phosphor NaCaLa(MoO4)3:Er3+/Yb3+: Structural and spectroscopic properties / C. S. Lim [et al.] // Dalton Trans. - 2016. - Vol. 45, Is. 39. - P. 15541-15551, DOI 10.1039/c6dt02378a. - Cited References: 71 . - ISSN 1477-9226
   Перевод заглавия: Тройной молибдат со структурой шеелита NaCaLa(MoO4)3:Er3+/Yb3+: структурные и спектроскопические свойства
Кл.слова (ненормированные):
Light emission -- Optical properties -- Phosphors -- Sol-gel process -- Sol-gels -- Tungstate minerals -- After-heat treatment -- Crystallized particles -- Homogeneous morphology -- Photoluminescence emission -- Spectroscopic property -- Triple molybdates -- Up-conversion emission -- Upconversion phosphors -- Optical emission spectroscopy
Аннотация: Triple molybdate NaCaLa(1-x-y)(MoO4)3:xEr3+,yYb3+ (x = y = 0, x = 0.05 and y = 0.45, x = 0.1 and y = 0.2, x = 0.2 and y = 0) phosphors were successfully synthesized for the first time by the microwave sol-gel method. Well-crystallized particles formed after heat treatment at 900 °C for 16 h showed a fine and homogeneous morphology with particle sizes of 2-3 ?m. The structures were refined by the Rietveld method in the space group I41/a. The optical properties were examined comparatively using photoluminescence emission and Raman spectroscopy. Under excitation at 980 nm, the NaCaLa0.7(MoO4)3:0.1Er3+,0.2Yb3+ and NaCaLa0.5(MoO4)3:0.05Er3+,0.45Yb3+ particles exhibited a strong 525 nm emission band, a weaker 550 nm emission band in the green region, and three weak 655 nm, 490 nm and 410 nm emission bands in the red, blue and violet regions. The pump power dependence and Commission Internationale de L'Eclairage chromaticity of the upconversion emission intensity were evaluated in detail. © 2016 The Royal Society of Chemistry.

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Держатели документа:
Department of Advanced Materials Science and Engineering, Hanseo University, Seosan, South Korea
Laboratory of Coherent Optics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Laboratory for Nonlinear Optics and Spectroscopy, Siberian Federal University, Krasnoyarsk, Russian Federation
Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Department of Physics, Far Eastern State Transport University, Khabarovsk, Russian Federation
Laboratory of Molecular Spectroscopy, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Department of Photonics and Laser Technologies, Siberian Federal University, Krasnoyarsk, Russian Federation
Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, SB RAS, Novosibirsk, Russian Federation
Functional Electronics Laboratory, Tomsk State University, Tomsk, Russian Federation
Laboratory of Semiconductor and Dielectric Materials, Novosibirsk State University, Novosibirsk, Russian Federation
Institute of Chemistry, Tyumen State University, Tyumen, Russian Federation

Доп.точки доступа:
Lim, C. S.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Ikonnikov, D. A.; Atuchin, V. V.
}
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10.

Upconversion luminescence of CsScF4 crystals doped with erbium and ytterbium / D. A. Ikonnikov [et al.] // Opt. Mater. - 2016. - Vol. 60. - P. 584-589, DOI 10.1016/j.optmat.2016.09.016. - Cited References:33. - The authors are grateful to D. L. Chertkova for excellent technical assistance. The work was partially supported by the Russian Foundation for Basic Research Grant 15-52-53080, by the Russian President Grant SS-7612.2016.2, and by Project No0358-2015-0012 of SB RAS Program NoII.2P. . - ISSN 0925-3467. - ISSN 1873-1252

РУБ Materials Science, Multidisciplinary + Optics
Рубрики:
MODULATED STRUCTURE
   LANTHANIDE
   NANOCRYSTALS
   PHOSPHORS
Кл.слова (ненормированные):
Fluoride crystals -- Erbium -- Ytterbium -- Up-conversion -- Luminescence -- Crystal structure -- Power dependence -- Pump wavelength dependence
Аннотация: Tetragonal CsScF4 crystals doped with (5 at.%) Er and Er/Yb (0.5 at.%/5 at.%) are grown and their crystal structure is determined to belong to Pmmn space group. Er and Yb ions are shown to occupy distorted octahedral Sc sites with the center of inversion. Bright visible upconversion luminescence was observed under 970-980 nm pumping with red (4F9/2), yellow (4S3/2) and green (2H11/2) bands of comparable intensity. UCL tuning curves maximize at 972 nm (CSF:Er) and at 969.7 nm (CSF:Er,Yb) pumping wavelengths. Different ratios between yellow-green and red luminescence intensities in CSF:Er and CSF:Er, Yb are explained by contribution of cross-relaxation in CSF:Er UCL UC in CSF:Er is a three stage process while UC in CSF:Er, Yb is a two stage process. The peculiarities of power dependences are explained by the power-dependent repopulation between starting levels of UC. (C) 2016 Elsevier B.V. All rights reserved.

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Держатели документа:
Siberian Fed Univ, Krasnoyarsk, Russia.
LV Kirenskii Inst Phys, Krasnoyarsk, Russia.
Far Eastern State Transport Univ, Khabarovsk, Russia.

Доп.точки доступа:
Ikonnikov, D. A.; Voronov, V. N.; Воронов, Владимир Николаевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Russian Foundation for Basic Research [15-52-53080]; Russian President [SS-7612.2016.2, 0358-2015-0012, II.2P]
}
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