TY - JOUR A1 - Behrman, J.R. A1 - Kohler, H.P. A1 - Watkins, S.C. T1 - Social networks and changes in contraceptive use over time: Evidence from a longitudinal study in rural Kenya Y1 - 2002 DO - 10.1353/dem.2002.0033 JF - Demography VL - 39 IS - 4 SP - 713 EP - -738 ER -