See also: E.D. Shchukin, M.I. Kaganov, A.M. Kosevich, V.R. Regel’, Yu.A. Osip’yan, R.I. Garber, I.A. Gindin
PACS: 62.20.Fe, 68.35.Gy, 68.35.Md, 68.43.Mn, 81.40.Lm