TY  - JOUR
A1  - Schwartz, C.R.
A1  - Graf, N.L.
T1  - Assortative matching among same-sex and different-sex couples in the United States, 1990–2000
Y1  - 2009
DO  - 10.4054/DemRes.2009.21.28
VL  - 21
IS  - 28

ER  -