Unknown
Mason, P
;
Benzoni, G
;
Bracco, A
;
[et al.]
Camera, F
;
Million, B
;
Wieland, O
;
Leoni, S
;
Singh, A K
;
Al-Khatib, A
;
Hübel, H
;
Bringel, P
;
Bürger, A
;
Neusser, A
;
Schönwasser, G
;
Hagemann, G B
;
Hansen, C R
;
... and further 52
Institute of Physics