See also: V.F. Kondrat’eva, S.E. Manoilov, M.A. Strelkova, I.F. Shmakova, N.B. Ivanova, A.A. Treskunov, R.L. Vilenskaya
PACS: 87.50.Jk, 87.15.Rn, 87.14.Ee