00543naa#a2200169#i#450# EN\INFRA-M\bibl\69583 20241129123722.5 2308-4898 20230925b2023####ek#y0engy0150####ca RU Area of correct space coordination by normal conic coordinates Journal article Moscow INFRA-M Academic Publishing LLC. 2023 8 с. Journal article local Геометрия. 514 Математика. 51 Nesnov Dmitriy Valer'evich zh-szf.ru