TY - JOUR A1 - Okun, B.S. T1 - Evaluating methods for detecting fertility control: Coale and Trussell's model and Cohort Partity Analysis Y1 - 1994 DO - 10.1080/0032472031000147766 JF - Population Studies VL - 48 IS - 2 SP - 193 EP - -222 ER -