00514naa#a2200181#i#450# EN\INFRA-M\bibl\47851 20240524140818.5 2500-0519 20211220b2021####ek#y0engy0150####ca RU Yves Klein and the Problem of Defining Art Journal article Moscow INFRA-M Academic Publishing LLC. 2021 2 с. Journal article local Философия. 10 Kudrin S. K. Vahrina A. V. naukaru.ru