Unknown
Andgren, K
;
Ashley, S F
;
Regan, P H
;
[et al.]
McCutchan, E A
;
Zamfir, N V
;
Amon, L
;
Cakirli, R B
;
Casten, R F
;
Clark, R M
;
Gürdal, G
;
Keyes, K L
;
Meyer, D A
;
Erduran, M N
;
Papenberg, A
;
Pietralla, N
;
Plettner, C
;
... and further 7
Institute of Physics