TY JOUR TI Isomorphism as the System-Forming Factor of Communicativeness in the Text KW communicative organization of the text KW semantic-syntactic relations KW isomorphism KW additivity KW conjunctions KW functional approach KW functional perspective KW betweenlevelled isomorphism JO Scientific Research and Development. Modern Communication Studies AU Alekseeva, M.N. AU Klyueva, E.V. PY 2021 IS 10 PB INFRA-M Academic Publishing LLC.