Abdel-Salam, Z.; Abdou, A.; Harith, M. Elemental and Ultrastructural Analysis of the Eggshell: Ca, Mg and Na Distribution During Embryonic Development via LIBS and SEM Techniques. Int. J. Poult. Sci. 2005, 5 (1), 35–42. https://doi.org/10.3923/ijps.2006.35.42.