PRECEDENT TEXTS REFLECTING THE POST- REVOLUTIONARY PERIOD DURING STUDYING M. A. BULGAKOV’S “DOG’S HEART” AT LITERATURE LESSONS IN THE 8TH FORM. (2026). Proceedings of Southern Federal University. Philology, 30(1), 158-168. https://philol-journal.sfedu.ru/index.php/sfuphilol/article/view/2179