Studbooks:


Gilbert, T. (2018): International studbook for the scimitar-horned oryx Oryx dammah. Thirteenth edition. Marwell Wildlife, UK. (Latest in a series of annual reports).  

Langenhorst, T. (2018): International studbook for Hartmann’s mountain zebra Equus zebra hartmannae 2017, current until 31.12.2017. Marwell Wildlife, UK. (Latest in a series of annual reports).

Langenhorst, T. (2018): International studbook for Grevy’s zebra Equus grevyi 2017, current until 31.12.2017. Marwell Wildlife, UK. (Latest in a series of annual reports).