00591naa#a2200205#i#4500001002200000005001700022011001400039100004100053101000800094102000700102200008100109210005100190215001000241608002700251675003400278700002000312700001900332700001800351856001600369EN\INFRA-M\bibl\1819220240427014242.6##a2308-4898##a20170928b2017####ek#y0engy0150####ca0#aRUS##aRU1#aFour-Dimensional Space’s Hypersurface Mapping SingularityeJournal article1#aMoscowcINFRA-M Academic Publishing LLC.d2017##a7 с.##aJournal article2local##aМатематика. 51zRUS#1aLyashkovgA. A.#1aPanchukgK. L.#1aVarepogL. G.4#ariorpub.com