TY - JOUR A1 - Schwartz, C. A1 - Mare, R.D. T1 - Trends in Educational Assortative Marriage from 1940 to 2003 Y1 - 2005 DO - 10.1353/dem.2005.0036 JF - Demography VL - 42 IS - 4 SP - 621 EP - -646 ER -