“The Correlation and Regression of Hatching Weight in Relation to Individual Egg-Weight in Two Broiler Strains”. Revista Da Faculdade De Medicina Veterinária E Zootecnia Da Universidade De São Paulo, vol. 10, no. 1, Dec. 1973, pp. 135-46, https://doi.org/10.11606/issn.2318-3659.v10i1p135-146.