共 36 条
[1]
ACKERMAN WC, 1970, T AM GEOPHYSICAL UNI, V51, P516
[4]
BREZONIK PL, 134 FLOR ENG IND EXP
[5]
CARROLL D, 1962, 1535G GEOL SURV WAT
[6]
COLLISION RC, 1932, NEW YORK AGRIC EXPT, V193, P3
[8]
DETHIER BE, 1966, 1009 CORN U AGR EXPT
[9]
ENGSTROM A, 1971, AIR POLLUTION ACROSS
[10]
FISHER DA, PERSONAL COMMUNICATI