TY  - JOUR
A1  - Greenwood, M.
A1  - Yule, G. U.
T1  - On the determination of size of family and of the distribution of characters in order of birth from samples taken through members of the sibships
Y1  - 1914
DO  - 10.2307/2339801
VL  - 77
IS  - 2

ER  -