共 20 条
[1]
BAR, 1905, J PHYSL PATH, V7
[2]
CROWTHER, 1922, J AGR SCI, V12, P40
[3]
DIBBELT, 1910, OHIO TECH B, V5
[4]
FORBES, 1918, OHIO AGR EXPT STN, V330, P111
[5]
GRISWOLD, 1928, MISSOURI EXPT STA RE, V114, P58
[6]
HAGEMANN, 1890, ARCH ANAT PHYS
[8]
HART, 1914, RES B MADISON AGR ST, V30, P13
[9]
HART, WISCONSIN EXPT STN R, V5
[10]
HOFFSTROM, 1910, SKAND ARCH PHYSL, V23, P326