1. Appleman, R. D. & F. G. Owen: Rreeding, housing and feeding management. J. Dairy Sci. 1975, 58, 447–464.
2. Blaxter, K. L. & W. A. Wood: Some observations on the biochemical and physiological events associated with diarrhoea in calves. Vet. Rec. 1953, 65, 889–893.
3. Bywater, R. J.: The functional pathology of neonatal diarrhoea in calves and piglets. Vet. Ann. 1975, 15, 425–431.
4. Doughri, A. M., K. P. Altera, J. Storz & A. K. Eugster: Ultra-structural changes in the chlamydia-infected ileal mucosa of newborn calves. Vet. Path. 1973, 10, 114–123,
5. Doughri, A. M., S. Young & J. Storz: Pathologic changes in intestinal chlamydial infection of newborn calves. Amer. J. vet. Res. 1974, 35, 939–944.