R. Schirman
发表
L. A. Morrow,
V. L. Cochran,
R. Schirman,
1990
.
W. C. Robocker,
R. Schirman,
B. Zamora,
1972,
Weed science.
R. Schirman,
B. Zamora,
1978,
Weed Science.
K. Buchholtz,
R. Schirman,
1966
.
A. Appleby,
D. C. Thill,
R. Schirman,
1979
.
A. Appleby,
D. C. Thill,
R. Schirman,
1980,
Weed Science.
A. Appleby,
D. C. Thill,
R. Schirman,
1979,
Weed Science.
R. N. Rosenthal,
W. C. Robocker,
R. Schirman,
1968,
Weed science.
W. C. Robocker,
R. Schirman,
1967
.
W. C. Robocker,
R. Schirman,
1976
.
Roland Schirman,
R. Schirman,
1981
.