R. Christensen
发表
D. F. Hughes,
R. Risebrough,
D. Anderson,
1969
.
W. Stickel,
L. Stickel,
R. Christensen,
1966,
Science.
B D Culver,
L. Nyquist,
P L Strong,
1999,
Journal of the American Dietetic Association.
M. Finley,
W. Stickel,
R. Christensen,
1979,
Bulletin of environmental contamination and toxicology.
C. D. Gish,
R. Christensen,
1973,
Environmental science & technology.
K. Burnham,
R. Stendell,
R. Christensen,
1979
.
M. J. Adams,
S. Pyare,
R. Christensen,
2004
.