Electronic Resource
Seki, H.
;
Masuda, Y.
;
Yokochi, Y.
;
[et al.]
Muranaka, T.
;
Fujita, S.
;
Ohta, S.
;
Sakamoto, Y.
;
Baba, A.
;
Togasawa, A.
;
Baba, M.
;
Masuda, M.
Amsterdam
:
Elsevier
Physica C: Superconductivity and its applications
185-189 (1991), S. 1319-1320