PROBLEMS OF GENERAL AND TYPOLOGICAL THEORY OF COMPOSITE SENTENCE WITH A PARENTHETICAL CLAUSE AS AN INVARIANT TYPE OF SYNTACTIC UNIT (to the statement of question of parenthetical introductory and insertive clauses). SJFSU. 2024;30(1):74. Accessed January 9, 2026. https://journal.fdu.uz/index.php/sjfsu/article/view/3559