@misc{db-core,
	title = {Основы технологий баз данных},
	year = {2020},
	author = {Б. А. Новиков, Е. А. Горшкова, Н. Г. Графеева;},
	month = may,
	language = {russian},
	note = {[Online; accessed 1. May 2023]},
	url = {https://www.postgrespro.ru/education/books/dbtech},
        pages = 582,
}