共 10 条
- [1] BASKETT RG, 1927, J MIN N IRELAND, V1
- [2] BOHSTEDT G, 1926, B OHIO AGR EXPT STAT, V395
- [3] CORNER GW, 1923, AM J ANAT, V31, P5
- [4] DAVIDSON HR, 1929, 1 U CAMBR
- [5] EMMETT AD, 1914, U ILLINOIS B, V168
- [6] EVANS HM, 1927, MEM U CALIFORNIA, V8
- [9] MCKENZIE FF, 1928, B MISSOURI AGR EXP S, V118
- [10] SHAW TJ, 1928, J MIN AGR JUL