00511naa#a2200181#i#450# EN\INFRA-M\bibl\28048 20251222093458.1 2308-4898 20190408b2019####ek#y0engy0150####ca RUS RU Reflection from Curved Mirrors in a Plane Journal article Moscow INFRA-M Academic Publishing LLC. 2019 8 с. Journal article local Математика. 51 RUS Zhikharev L. A. zh-szf.ru