Refined weight of edges in normal plane maps. - Tsyndyma Chimit-Dordjievna Batueva; Oleg V. Borodin; Mikhail A. Bykov; Anna O. Ivanova; Olesy N. Kazak; D. V. Nikiforov (Discret. Math., 2017)

More about the height of faces in 3-polytopes. - Oleg V. Borodin; Mikhail A. Bykov; Anna O. Ivanova (Discuss. Math. Graph Theory, 2018)

Low 5-stars at 5-vertices in 3-polytopes with minimum degree 5 and no vertices of degree from 7 to 9. - Oleg V. Borodin; Mikhail A. Bykov; Anna O. Ivanova (Discuss. Math. Graph Theory, 2020)