共 21 条
[1]
[Anonymous], 1999, OUR COMM JOURN TRANS
[2]
Baron JS, 2002, ECOL APPL, V12, P1247
[4]
Cohn JP, 2001, BIOSCIENCE, V51, P998, DOI 10.1641/0006-3568(2001)051[0998:RTDALA]2.0.CO
[5]
2
[6]
GAO, 2002, GAO02612
[7]
GAO (United States General Accounting Office), 2003, GAO03515
[8]
GILLILAN S, IN PRESS J APPL ECOL