The Hippocratic "Airs, waters, places" on cross-dressing eunuchs. "Natural" yet also "divine".

von Lieber, E.
Veröffentlicht in Sex and difference in ancient Greece and Rome
Umfang/Format: 351-369.

Index to The Journal of the American Research Center in Egypt. Volumes I-XXVI, 1962 - 1989.

von Lieber, E.
Veröffentlicht in Journal of the American Research Center in Egypt, 27.1990
1990.
Umfang/Format: 199-217.