R. Coltman
发表
X. Wolff,
R. Coltman,
1990
.
W. H. Gabelman,
G. C. Gerloff,
R. Coltman,
1987
.
W. H. Gabelman,
G. C. Gerloff,
R. Coltman,
1986,
Journal of the American Society for Horticultural Science.
D. Waterer,
R. Coltman,
1988,
Journal of the American Society for Horticultural Science.
D. Waterer,
R. Coltman,
1989,
Plant and Soil.
X. Wolff,
R. Coltman,
1990
.
D. Waterer,
R. Coltman,
1989
.
R R Coltman,
R. Coltman,
1988,
HortScience.
W. H. Gabelman,
G. C. Gerloff,
R. Coltman,
1985,
Journal of the American Society for Horticultural Science.
R. Coltman,
S. Riede,
1992
.
W. H. Gabelman,
G. C. Gerloff,
R. Coltman,
1986,
HortScience.
R. Coltman,
1987,
Journal of the American Society for Horticultural Science.