1. Adametz, L., 1913. 1st Doppellendigkeit verebbar? Dt. Landwirt. Presse, (101), 1211–1212.
2. Anonymous, 1961. Muscular hypertrophy or ‘double muscling’ in a Friesian calf. Rep. Prod. Div., (Milk Marketing Board), (11), 122–124.
3. Ansay, M., 1976. Développement anatomique du muscle de foetus bovin: Etude particulière de l’effet ‘culard’. Ann. Biol. Anim. Bioch. Biophys., 16, 655–673.
4. Ansay, M. and Hanset, R., 1979. Anatomical, physiological and biochemical differences between conventional and double muscled cattle in the Belgian blue and white breed. Livest. Prod. Sci., 6, 5–13.
5. Ashmore, C.R., Parker, W., Stokes, H. and Doerr, L., 1974. Comparative aspects of muscle fiber types in fetuses of the normal and ‘double muscled’ cattle. Growth, 38, 501–50.