00473naa#a2200145#i#450# EN\\bibl\92624 20250504232145.7 20241224b2024####ek#y0engy0150####ca RU MEMORABLE AND COMMEMORATIVE DATES FOR THE 90TH ANNIVERSARY OF HIS BIRTH PROFESSOR IVAN IVANOVICH KUPTSOV Journal article Ryazan Academy of the FPS of Russia 2024 3 с. Journal article local zhurnal-vektor.editorum.ru