00470naa#a2200169#i#450# EN\INFRA-M\bibl\13167 20250108101318.3 2308-4898 20160919b2016####ek#y0engy0150####ca RUS RU An Infinite Sequence of Mutually Related Circles Journal article Moscow INFRA-M Academic Publishing LLC. 2016 6 с. Journal article local Arakelyan A. zh-szf.ru