International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics, 1993, v. 7, n. 23/24, p. v, doi. 10.1142/S0217979293003929
International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics, 1993, v. 7, n. 23/24, p. 3937, doi. 10.1142/S0217979293003553