by FRAGGIS, T, ST PNEVMATIKOS, ECONOMOU, E. N
Published in Physics letters. A (01.12.1989)

by Fraggis, T., Pnevmatikos, St, Economou, E.N.
Published in Physics letters. A (1989)

by Pnevmatikos, S, Yanovitskii, O, Fraggis, T, Economou, EN
Published in Physical review letters (13.04.1992)

by Economou, EN, Yanovitskii, O, Fraggis, T
Published in Physical review. B, Condensed matter (01.01.1993)

by Milchev, A, Fraggis, T, Pnevmatikos, S
Published in Physical review. B, Condensed matter (01.05.1992)