TY - JOUR A1 - Behrman, Jere R. A1 - Kohler, Hans-Peter A1 - Watkins, Susan Cotts 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 VL - 39 IS - 4 ER -