1. How Sexually Dimorphic Are We? Review and Synthesis;Blackless;Am. J. Hum. Biol.,2000
2. Fausto-Sterling, A. (2000). Sexing the Body: Gender Politics and the Construction of Sexuality, Basic Books.
3. Free & Equal—United Nations for LGBT Equality, and van Gelderen, M. (2015). Fact Sheet Intersex, United Nations Human Rights Office.
4. Frisch, M., Moseholm, E., Andersson, M., Bernhard Andresen, J., and Graugaard, C. (2019). Sex I Danmark, Nøgletal Fra Projekt Sexus 2017–2018 (Sex in Denmark. Key Findings from Project Sexus 2017–2018), State Serum Institute (Department of Epidemiological Research).
5. Van Lisdonk, J. (2014). Leven Met Intersekse/DSD—Een Verkennend Onderzoek Naar de Leefsituatie van Personen Met Intersekse/DSD, Rapport Nr. 2014-15; Sociaal en Cultureel Planbureau.