Mellema-Aeschimann, S., (2004): Influence of local anaesthesia on pain and distress induced by three bloodless castration methods in young lambs. Thesis, VetSuisse-Faculty, University of Berne.
Thüer, S. (2005): Effect of local anaesthesia on short- and long term pain induced by three bloodless castration methods in calves. Thesis, VetSuisse-Faculty, University of Berne.
Mellema, S.C., Doherr, M., Wechsler, B., Thüer, S., Steiner, A. (2006): Influence of local anaesthesia on pain and distress induced by two bloodless castration methods in young lambs. The Veterinary Journal 172, 274-283.
Thüer, S., Mellema, S., Doherr, M., Wechsler, B., Nuss, K., Steiner, A. (2007): Effect of anaesthesia on short- and long-term pain induced by two bloodless castration methods in calves. The Veterinary Journal 173, 333-342.
Melches, S., Mellema, S., Doherr, M., Wechsler, B., Steiner, A. (2007): Castration of lambs: A welfare comparison of different castration techniques in lambs over 10 weeks of age. The Veterinary Journal 173, 554-563.