J.-M. Lariviere, C. Michaux, and P. Leroy, “Genetic Parameters of Embryonic Viability Traits in a Traditional Chicken Breed”, Int. J. Poult. Sci., vol. 8, no. 12, pp. 1183–1188, Nov. 2009, doi: 10.3923/ijps.2009.1183.1188.