http://en.wikipedia.org/wiki/Transgender

http://www.asaging.org/networks/lgain/outword-063.html

http://www.symposion.com/ijt/ijtvo06no02_02.htm

http://www.4transgenders.com/

http://www.ucsf.edu/daybreak/2000/06/23_transgender.html

http://www.travestie.org/html/index.php?bestand=informatief