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«Description of positively existentially closed models in any class of -structures with unary predicates axiomatizable by any h-universal sentence»., JMMCS, т. 69, вып. 2, сс. 39–43, июн. 2011, просмотрено: авг. 24, 2026. доступно на: https://bm.kaznu.kz/index.php/kaznu/article/view/193