A. D. Copeland
发表
G W Smithers,
F J Ballard,
A D Copeland,
1996,
Journal of dairy science.
S. P. Porterfield,
C. E. Hendrich,
A. D. Copeland,
1990,
Hormone and metabolic research = Hormon- und Stoffwechselforschung = Hormones et metabolisme.
F. Ballard,
G. Francis,
C. Goddard,
1997
.