Oleksandr Ivanovych Stepanets’ (on the 70 th anniversary of his birthday)

Authors

• M. L. Gorbachuk
• P. V. Zaderei Киев. нац. ун-т технологий и дизайна
• I. O. Lukovsky
• V. L. Makarov
• V. P. Motornyi
• A. S. Romanyuk
• A. M. Samoilenko
• A. S. Serdyuk
• V. V. Sharko Inst. Math. Nat. Acad. Sci. Ukraine, Kyiv