1. Evaluation of egg shell strength through experimental stress analysis;Hammerle;Trans. A.S.A.E.,1969
2. Physical properties of egg shells. 1. Relationship of resistance to compression and force at failure of egg shells;Hunt;Poultry Sci.,1966
3. Stress analysis of eggshell;Manceau;Trans. A.S.A.E.,1970
4. The relationship between selected eggs characteristics and the resistance of the shell against puncture by pressure and impact;Mueller;Poultry Sci.,1957
5. A biometrical study of egg production in the domestic fowl. III. Variation and correlation in the physical characters of the egg;Pearl;U.S.D.A. Bur. of Animal Ind. Bul.,1910