@article{Black2000,
author = {Black, D. and Gates, G.J. and Sanders, S. and Taylor, L.},
title= {Demographics of the gay and lesbian population in the United States: Evidence from available systematic data sources},
year = {2000},
doi = {10.2307/2648117},
journal = {Demography},
volume = {37},
number = {2},
pages = {139--154},
}