00620naa#a2200181#i#450# EN\INFRA-M\bibl\44909 20240811174452.7 2500-3321 20210707b2021####ek#y0engy0150####ca RU Cluster of concepts of scientific activity Review of the book Lebedev S.A. Scientific activity: basic concepts. – M.: Prospect Publ., 2021. 136 p. Journal article Moscow INFRA-M Academic Publishing LLC. 2021 4 с. Journal article local Философия. 10 Gubanov N. N. Gubanov N. naukaru.ru