1. Regaud C: Etudes sur la structure des tubes seminiferes et sur la spermatogenese chez les mammiferes [Studies on the structure of seminiferous tubules and on spermatogenesis in mammals]. Part 1. Archives d’Anatomie microscopiques et de Morphologie experimentale. 1901, 4: 101-156.
2. Regaud C: Etudes sur la structure des tubes seminiferes et sur la spermatogenese chez les mammiferes [Studies on the structure of seminiferous tubules and on spermatogenesis in mammals] . Part 2. Archives d’Anatomie microscopiques et de Morphologie experimentale. 1901, 4: 231-280.
3. Brinster RL: Male germline stem cells: from mice to men. Science. 2007, 316: 404-405. 10.1126/science.1137741.
4. Spradling A, Fuller MT, Braun RE, Yoshida S: Germline stem cells. Cold Spring Harb Perspect Biol. 2011, 3: a002642-
5. Waldeyer W: Eierstock und Ei [Ovary and egg]. 1870, Leipzig: Engelmann