De Gruyter graduate. — Текст: электронный.
Geometry and discrete mathematics: a selection of highlights / Benjamin Fine, Anja Moldenhauer, Gerhard Rosenberger, Annika Schürenberg, Leonard Wienke. — Second edition. — 1 online resource : illustrations. — (De Gruyter graduate). — "This two-volume set collects and presents the fundamentals of mathematics in an exciting and pedagogically sound way." The current volume is complimented by the previous volume, "Algebra and number theory.". — Доступ по паролю из сети Интернет (чтение, печать, копирование). — <URL:https://elib.spbstu.ru/ebsco/pdf/3329162.pdf>. — Текст: электронный