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)

Heights of minor 5-stars in 3-polytopes with minimum degree 5 and no vertices of degree 6 and 7. - Oleg V. Borodin; Anna O. Ivanova; Olesy N. Kazak; Ekaterina I. Vasil'eva (Discret. Math., 2018)

Describing neighborhoods of 5-vertices in 3-polytopes with minimum degree 5 and without vertices of degrees from 7 to 11. - Oleg V. Borodin; Anna O. Ivanova; Olesy N. Kazak (Discuss. Math. Graph Theory, 2018)

Describing the neighborhoods of 5-vertices in 3-polytopes with minimum degree 5 and no vertices of degree from 6 to 8. - Oleg V. Borodin; Anna O. Ivanova; Olesy N. Kazak (Discret. Math., 2019)