@inbook{Gates2007,
author = {Gates, G.J. and Sell, R.},
title= {Measuring gay and lesbian couples},
year = {2007},
editor = {Hofferth, S.L.},
editor = {Casper, L.M.},
booktitle = {Handbook of measurement issues in family research},
address = {Mahwah, NJ},
publisher = {Lawrence Erlbaum Associates},
pages = {235--244},
}