Sepúlveda, P., Wittwer, F., Böhmwald, H., Pulido, R. G. and Noro, M. (2011) “Ruminal pH and magnesium metabolic balance in dairy cattle on grazing and supplemented with magnesium oxide”, Archivos de Medicina Veterinaria, 43(3), pp. 241–250. doi: 10.4067/S0301-732X2011000300006.