Authors: van Dijk, CJ Lourens, DC

Citation: Cj. Van Dijk et Dc. Lourens, Effects of anionic salts in a pre-partum dairy ration on calcium metabolism, J SA VET AS, 72(2), 2001, pp. 76-80

Authors: van der Eerden, LJM de Visser, PHB van Dijk, CJ

Citation: Ljm. Van Der Eerden et al., Risk of damage to crops in the direct neighbourhood of ammonia sources, ENVIR POLLU, 102, 1998, pp. 49-53