P. Spreng
发表
P. Spreng,
1967,
Nature.
E. Zingg,
R. Tscholl,
O. Sebeseri,
1975,
Investigative urology.
R. Tscholl,
P. Spreng,
U. Keller,
1976,
Investigative urology.
L. Tuinstra,
P. Spreng,
P. Gaikhorst,
1995
.