Electronic Resource
Rui, Y.
;
Ji, H.L.
;
Shao, H.M.
;
[et al.]
Xu, X.N.
;
Qin, M.J.
;
Shen, J.C.
;
Jin, X.
;
Yao, X.X.
;
Ying, B.
;
Che, G.C.
;
Rong, X.S.
;
Zhao, Z.X.
Amsterdam
:
Elsevier
Physica C: Superconductivity and its applications
231 (1994), S. 243-248