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Copyright (c) 2016 Svitlana Gorobets, Oksana Gorobets, Yulia Chyzh, Oleksiy Kovalev, Valeriya Perizhok, Volodymyr Golub

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This work is licensed under a Creative Commons Attribution 4.0 International License.

ISSN 2461-4262 (Online), ISSN 2461-4254 (Print)