RT Article T1 The competition-violence hypothesis: sex, marriage, and male aggression JF Justice quarterly VO 34 IS 4 SP 652 OP 673 A1 Seffrin, Patrick M. LA English YR 2017 UL https://krimdok.uni-tuebingen.de/Record/1639844333 K1 Competition K1 Marriage K1 Sex K1 Violence