@article{Korolyuk_Lukovsky_Perestyuk_Pratsiovytyi_Samoilenko_Yakovets_2012, title={Mykola Ivanovych Shkil’ (on his 80th birthday)}, volume={64}, url={https://umj.imath.kiev.ua/index.php/umj/article/view/2693}, number={12}, journal={Ukrains’kyi Matematychnyi Zhurnal}, author={Korolyuk, V. S. and Lukovsky, I. O. and Perestyuk, N. A. and Pratsiovytyi, M. V. and Samoilenko, A. M. and Yakovets, V. P.}, year={2012}, month={Dec.}, pages={1720-1722} }