00485naa#a2200169#i#450# EN\INFRA-M\bibl\15108 20240704102628.4 2500-3313 20161215b2016####ek#y0engy0150####ca RUS RU About the Monograph "Cyclide Dupin and Its Application" Journal article Moscow INFRA-M Academic Publishing LLC. 2016 0 с. Journal article local Sal'kov N. A. zh-szf.ru