P. S. Callahan
发表
R. L. Bailey,
P. S. Callahan,
1975
.
P. S. Callahan,
Fosheng Li,
M. G. Freilich,
1984
.
J. Anderson,
A. Moffet,
R. Hellings,
1981
.
Young-Joon Kim,
Kyung Pak,
Philip S. Callahan,
1998,
IGARSS '98. Sensing and Managing the Environment. 1998 IEEE International Geoscience and Remote Sensing. Symposium Proceedings. (Cat. No.98CH36174).
Bruce J. Haines,
Shailen D. Desai,
Philip S. Callahan,
2003
.