Thomas R. Sterling College degree program “Sustainable Agriculture and Draft Animal Power Systems”. In: Staatliche Schlösser und Gärten Hessen, Kropp C, Zoll L, editors. Draft Animals in the Past, Present and Future [Internet]. Heidelberg: Propylaeum; 2022 [cited 2024 May 19]. pp. 191-6. Available from: https://books.ub.uni-heidelberg.de/propylaeum/catalog/book/1120/chapter/15615