TY - JOUR A1 - Bras, H. A1 - van Poppel, F. A1 - Mandemakers, K. T1 - Relatives as spouses: Preferences and opportunities for kin marriage in a Western society Y1 - 2009 DO - 10.1002/ajhb.20896 JF - American Journal of Human Biology VL - 21 IS - 6 SP - 793 EP - -804 ER -