@book{30680,
	title = {Кн. 1 : Арифметика},
	publisher = {Гостехиздат},
	year = {1951},
	url = {https://ikfia.ysn.ru/wp-content/uploads/2018/01/AleksandrovMarkushevichHinchin_EncElMat1_1951ru.pdf}
}