E.V. Ivanov, V.N. Obridko, I.V. Ananyev Sector structure, rotation and cyclic evolution of large-scale solar magnetic fields Solar Phys., 2001, 199, 405
V.N. Obridko , Shelting B.D. Rotation characteristics of large-scale solar magnetic field Solar Phys. 2001, V.201, P.1
V.N.Obridko, E.V.Ivanov, A. Ozguc, A. Kilcik, V. B. Yurchyshyn Coronal mass ejections and the index of effective solar multipole Solar Physics, 2012, v. 281, p. 779–792.