by Vendik, I.B., Deleniv, A.N., Sherman, V.O., Svishchev, A.A., Kondratiev, V.V., Kholodniak, D.V., Lapshin, A.V., Yudin, P.N., Min, B.-C., Choi, Y.H., Oh, B.
Published in IEEE transactions on applied superconductivity (01.03.2001)

by Kachurovskii, A. G., Podvigin, I. V., Svishchev, A. A.
Published in Journal of mathematical sciences (New York, N.Y.) (01.05.2021)

by Vendik, I.B., Kondratiev, V.V., Kholodniak, D.V., Gal'chenko, S.A., Deleniv, A.N., Goubina, M.N., Svishchev, A.A., Leppavuori, S., Hagberg, J., Jakku, E.
Published in IEEE transactions on applied superconductivity (01.06.1999)