Wedel, Thilo and Stelzner, Sigmar. "1. Anatomie".
Band 1 Manual der Koloproktologie, edited by Alexander Herold and Thomas Schiedeck, Berlin, Boston: De Gruyter, 2019, pp. 1-28.
https://doi.org/10.1515/9783110614442-001
Wedel, Thilo and Stelzner, Sigmar. "1. Anatomie" In
Band 1 Manual der Koloproktologie edited by Alexander Herold and Thomas Schiedeck, 1-28. Berlin, Boston: De Gruyter, 2019.
https://doi.org/10.1515/9783110614442-001