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1
The number of pupils and educational effects in comprehensive secondary schools by Jan Polcyn
Published 2017-06-01
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Reply to the polemics by Sebastian Stępień, Michał Borychowski, Jan Polcyn
Published 2022-09-01
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Factors Influencing the Renewable Energy Consumption in Selected European Countries by Jan Polcyn, Yana Us, Oleksii Lyulyov, Tetyana Pimonenko, Aleksy Kwilinski
Published 2021-12-01
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