by Pastushenkov, Yu.G., Shipov, A.V., Grechishkin, R.M., Afanasieva, L.E.
Published in Journal of magnetism and magnetic materials (01.02.1995)

by NIGMETOV G.M, DAVYDOV V.F, SHAKHRAMAN'JAN M.A, SHALAEV V.S, SHIPOV A.V
Year of Publication 10.04.2002

by ILLARIONOV G.P, KUZNETSOV O.L, NOVOSELOV O.N, DAVYDOV V.F, SHALAEV V.S, SHIPOV A.V
Year of Publication 20.06.2002