1. Berweger Baschnagel, M., 1998. Populationsparameter und Zuchtwerte für Gewichtsmerkmale bei Fleischrindern in der Schweiz. Diss. ETH No. 12 619, Zürich.
2. A Manual For Use of MTDFREML. A Set of Programs to Obtain Estimates of Variances and Covariances;Boldman,1993
3. The role of maternal effects in animal breeding. VIII. Comparative aspects of maternal effects;Cundiff;J. Anim. Sci.,1972
4. Comparison of models to estimate maternal genetic effects for weaning weight;Dodenhoff;J. Anim. Sci.,1998
5. Litter, permanent environmental, ram–flock, and genetic effects on early weight gain of lambs;Hagger;J. Anim. Sci.,1998