00580naa#a2200193#i#450# EN\INFRA-M\bibl\91691 20241223054637.1 2500-0489 20241208b2024####ek#y0engy0150####ca RU All-Russian seminar «Geometry and Graphics» 2024 Journal article Moscow INFRA-M Academic Publishing LLC. 2024 7 с. Journal article local Геометрия. 514 Vyshnyepolskiy Vladimir Igorevich Zavarihina E. V. Kadykova Nina S. zh-szf.ru