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2022
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2021
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National Library of Serbia, 2013
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2021
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Centre for Evaluation in Education and Science (CEON/CEES), 2020
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Centre for Evaluation in Education and Science (CEON/CEES), 2013
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Frontiers Media SA, 2023
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National Library of Serbia, 2023
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Nomos Verlag, 2022
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Ovid Technologies (Wolters Kluwer Health), 2005
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Lithuanian Academy of Sciences, 2020
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Elsevier BV, 2011