See also: E.I. Gacheva, V.V. Zelenogorsky, E.A. Khazanov, S.Yu. Mironov, A.V. Andrianov, P. Boonpornprasert, T. Rublack, J. Huran, G.D. Shirkov, M.A. Nozdrin, V.F. Minashkin, N.I. Balalykin, F. Stephan, Y.L. Chen, H. Huck
PACS: 29.20.-c, 29.27.Ac, 42.60.By, 42.60.-v, 29.25.Bx, 79.60.-i