Electronic Resource
Romeo, C.
;
Boffa, V.
;
Bollanti, S.
;
[et al.]
Paterno, G.
;
Alvani, C.
;
Penna, M.
;
Barbanera, S.
;
Castrucci, P.
;
Murtas, F.
;
Leoni, R.
Amsterdam
:
Elsevier
Physica C: Superconductivity and its applications
180 (1991), S. 77-80