{{Cite journal| doi = 10.1111/j.1728-4457.2015.00046.x| issn = 00987921| volume = 41| issue = 2| pages = 241–269| last1 = Bongaarts| first1 = John| last2 = Guilmoto| first2 = Christophe Z.| title = How Many More Missing Women? Excess Female Mortality and Prenatal Sex Selection, 1970-2050| journal = Population and Development Review| access-date = 2015-09-25| date = 2015-06| url = http://doi.wiley.com/10.1111/j.1728-4457.2015.00046.x}}