00460naa#a2200169#i#4500001002200000005001700022011001400039100004100053101000800094102000700102200004400109210005100153215001000204608002700214700003400241856001500275EN\INFRA-M\bibl\1316820241218150627.3##a2308-4898##a20160919b2016####ek#y0engy0150####ca0#aRUS##aRU1#aContact Conic SectionseJournal article1#aMoscowcINFRA-M Academic Publishing LLC.d2016##a9 с.##aJournal article2local#1aKorotkiygViktor Anatol'evich4#anaukaru.ru