共 6 条
[2]
FISKER AN, 1949, 12 INT DAIR C, V3, P319
[4]
POSTHUMUS G, 1949, 12 INT DAIR C, V3, P288
[5]
SNEDECOR GW, 1940, STATISTICAL METHODS
[6]
1948, STANDARD METHODS EXA, P85