(A) Journal articles:
(B) Conference talks and lectures:
http://www.medizin.fu-berlin.de/klinphys/lehre/s_pclamp_0.htm.
(C) Conference posters:
25. Abdoun, K., Martens, H. (2001). Role of diet in interaction between ammonia and Na+ transport across isolated ruminal epithelium of sheep in vitro. Proceedings of the 24th Conference of the German Veterinary Association: 362-368.