1. Some factors affecting dynamic fracture of egg shells in battery cages;Anderson,1970
2. A study of selections for the size, shape and color of hen's eggs;Benjamin;Cornell University, Memoir,1920
3. Determination of surface area using profile recordings;Besch;Poultry Sci.,1968
4. Mesure de la surface de l'oeuf;Bonet;Annu. Zootech.,1965
5. The hen's egg: A mathematical model with three parameters;Carter;Brit. Poultry Sci.,1968