1. Blood and serum group investigations on cattle, pig and dog in Denmark;Andresen,1959
2. Beta-globulin polymorphism and economic factors in dairy cattle;Ashton;J. Agr. Sci,1960
3. Transferrin (beta-globulin) type and milk and butterfat production in dairy cows;Ashton;J. Agr. Sci.,1964
4. Barr, H. L. 1960. The association between certain extracellular factors of erythrocytes and several measurable performance traits in dairy cattle. Ph.D. thesis, Ohio State University, Columbus.
5. Correlations between beta-lactoglobu-lin types in cattle and age at first calving, milk yield, and fat content;Comberg;Züchtungs-kunde,1964