00617naa#a2200193#i#4500001002200000005001700022011001400039100004100053102000700094200012600101210005100227215001000278608002700288675002900315700002000344700002200364700002200386856001500408EN\INFRA-M\bibl\4489220241122002958.5##a2308-4898##a20210722b2021####ek#y0engy0150####ca##aRU1#aMathematical Description for a Particular Case of Ellipse Focus Quasi-Rotation Around an Elliptical AxiseJournal article1#aMoscowcINFRA-M Academic Publishing LLC.d2021##a6 с.##aJournal article2local##aМатематика. 51#1aAntonovagI. V.#1aSolomonovagE. V.#1aKadykovagNina S.4#anaukaru.ru