Finding a subset of nonnegative vectors with a coordinatewise large sum. - Ilya I. Bogdanov; Grigory R. Chelnokov (Discret. Math., 2013)

Covering three-tori with cubes. - Ilya I. Bogdanov; Oleg Grigoryan; Maksim Zhukovskii (Australas. J Comb., 2026)