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Samoilenko AM, Klesov OI, Zaderei PV, Nefedova GD, Zaderei NM, Gaidei VO. Nina Opanasivna Virchenko (on his 90th birthday). Ukr. Mat. Zhurn. [Internet]. 2020Aug.18 [cited 2020Sep.25];72(8):1149-52. Available from: http://umj.imath.kiev.ua/index.php/umj/article/view/6213