R. Howell
发表
R. Howell,
1987
.
R. Howell,
C. Curtis,
D. Kremer,
1976
.
R. Howell,
C. Curtis,
1971
.
W. Aust,
R. Howell,
M. Bolding,
2018,
International Journal of Forest Engineering.
M. Anderson,
R. Howell,
G. Buckley,
1997
.
R. Howell,
E. Koch,
L. Rose,
1979
.
Influence of air pollution on quantities of caffeic acid isolated from leaves of Phaseolus vulgaris.
R. Howell,
1970
.
R. Howell,
L. Rose,
1980
.
R. Howell,
L. Krusberg,
1966,
Phytopathology.
R. Howell,
L. Smith,
1977
.
R. Howell,
1974
.
R. Howell,
D. Kremer,
1973
.
C. H. Hanson,
T. Devine,
R. Howell,
1971
.
R. Howell,
V. Miller,
B. E. Caldwell,
1974
.
C. Foy,
R. Howell,
S. Miyasaka,
1991,
Plant physiology.
R. Howell,
R. Webb,
T. Elden,
1978
.
M. Anderson,
R. Howell,
G. Buckley,
1997
.