P. Atkins
发表
P. Pearce-Kelly,
D. Clarke,
C. Walker,
1997
.
P. Atkins,
G. Losey,
D. L. Gorlick,
1987
.
Cleaning Stations as Water Holes, Garbage Dumps, and Sites for the Evolution of Reciprocal Altriusm?
P. Atkins,
G. Losey,
D. L. Gorlick,
1978,
The American Naturalist.