P. Ludwig
发表
J. T. D'Alessio,
P. Ludwig,
M. Burton,
1964
.
J. Notholt,
P. Ludwig,
1988
.
J. Notholt,
P. Ludwig,
1989
.
P. Ludwig,
U. Laor,
1971
.
P. Ludwig,
C. Amata,
1967
.
J. T. D'Alessio,
P. Ludwig,
1965
.
P. Ludwig,
M. Nishikawa,
1970
.
J. Roy,
P. Ludwig,
1970
.
P. Ludwig,
Takahisa Ichikawa,
1969
.
P. Ludwig,
1969
.
M. Huque,
P. Ludwig,
1968
.
P. Ludwig,
C. Amata,
1968
.
P. Ludwig,
C. Amata,
1968
.
P. Ludwig,
U. Laor,
J. C. Hsieh,
1973
.
P. Ludwig,
U. Laor,
J. C. Hsieh,
1971
.
R. Povinelli,
P. Ludwig,
M. Burton,
1964
.