On the Observation Data which Confirm Binary Nature of Magnetic Chemically Peculiar Stars

by Gopka, V. F., Ulyanov, O. M., Andrievsky, S. M.
Published 2012

Detailed chemical abundances of several CP-stars of the upper main sequence

by Gopka, V.F., Yushchenko, A.V., Shavrina, A.V., Musaev, F.A.
Published 2005

Lithium and its isotopic ratio ⁶Li/⁷Li in the atmospheres of sharp-lined roAp stars γ Equulei and HD 166473

by Shavrina, A., Polosukhina, N., Khan, S., Pavlenko, Ya., Khalack, V., Wade, G.A., Quine, t P., Mikhailitska, N., Yushchenko, A., Gopka, V., Kudryavtsev, D.
Published in Кинематика и физика небесных тел (2005)