See also: B.A. Knyazev, V.T. Astrelin, A.A. Tyutin, V.S. Cherkasskii
PACS: 41.75.Ak, 41.85.Ar, 52.25.Jm, 52.40.Kh, 52.59.Bi, 52.59.Sa, 52.65.-y, 01.50.-i, 41.20.Gz