00481naa#a2200169#i#450# EN\INFRA-M\bibl\101580 20260201081353.7 2308-4898 20250329b2025####ek#y0engy0150####ca RU Mathematical Unfoldings of Surface Journal article Moscow INFRA-M Academic Publishing LLC. 2025 7 с. Journal article local Математика. 51 Nazarova Zh. A. naukaru.ru