TY  - JOUR
A1  - Lawson, D.W.
A1  - Mace, R.
T1  - Trade-offs in modern parenting: A longitudinal study of sibling competition for parental care
Y1  - 2009
DO  - 10.1016/j.evolhumbehav.2008.12.001
VL  - 30
IS  - 3

ER  -