00509naa#a2200169#i#4500001002200000005001700022011001400039100004100053101000800094102000700102200010600109210005100215215001100266608002700277700001900304856001600323EN\INFRA-M\bibl\1042220240416221701.2##a2308-4898##a20151217b2015####ek#y0engy0150####ca0#aRUS##aRU1#aProperties of Dupin Cyclide and Their Application. Part 3: The Problem of ApolloniuseJournal article1#aMoscowcINFRA-M Academic Publishing LLC.d2015##a11 с.##aJournal article2local#1aSal'kovgN. A.4#ariorpub.com