@article{Goodman1961,
author = {Goodman, L.A.},
title= {Some possible effects of birth control on the human sex ratio},
year = {1961},
doi = {10.1111/j.1469-1809.1961.tb01500.x},
journal = {Annals of Human Genetics},
volume = {25},
number = {1},
pages = {75--81},
}