by Tcherner, E, Ummat, P K, Datars, W R
Published in Journal of physics. Condensed matter (29.09.1997)

by BARATI, M, DUBE, P. A, TCHERNER, E, UMMAT, P. K, DATARS, W. R
Published in Synthetic metals (15.05.1998)

by Barati, M., Dube, P.A., Tcherner, E., Ummat, P.K., Datars, W.R.
Published in Synthetic metals (1998)