Unknown
Cozzini, C.
;
Angloher, G.
;
Bucci, C.
;
[et al.]
von Feilitzsch, F.
;
Hauff, D.
;
Henry, S.
;
Jagemann, Th.
;
Jochum, J.
;
Kraus, H.
;
Majorovits, B.
;
Mikhailik, V.
;
Ninkovic, J.
;
Petricca, F.
;
Potzel, W.
;
Pröbst, F.
;
Ramachers, Y.
;
... and further 8
American Physical Society