@article{Kurdek1987,
author = {Kurdek, L.A. and Schmitt, J.P.},
title= {Partner homogamy in married, heterosexual cohabiting, gay, and lesbian couples},
year = {1987},
URL = {http://www.jstor.org/stable/3812592 },
journal = {The Journal of Sex Research},
volume = {23},
number = {2},
pages = {212--232},
}