00392naa#a2200145#i#450# EN\\bibl\115660 20260319115014.4 0536-101X 20251031b2025####ek#y0engy0150####ca RU In Memory of Leonid Anatolyevich Konovalov Journal article Moscow MIIGAiK 2025 0 с. Journal article local miigaik.editorum.ru