TY - JOUR AU - A. V. Ilev TI - Axiomatizability and decidability of universal theories of hereditary classes of models of finite and infinite languages JO - Prikladnaâ diskretnaâ matematika PY - 2024 SP - 14 EP - 29 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/PDM_2024_4_a1/ LA - ru ID - PDM_2024_4_a1 ER -