P. Kopp
发表
W. Burkart,
O. Oestling,
P. Kopp,
1989
.
U. Feller,
J. Oertli,
P. Kopp,
1993
.
P. Ballet,
A. V. D. Driesch,
F. Beguin,
2003
.
M. Schultz,
Nikolaos Roumelis,
Jana Jones,
2006
.
C. Bell,
L. Tobler,
T. Hinton,
1995,
Health physics.
Jost Eikenberg,
U. Feller,
Urs Feller,
1995
.
U. Feller,
J. Oertli,
J. Eikenberg,
1996
.