@article{hunton_2005,  title={Research on eggshell structure and quality: an historical overview},  volume={7},  ISSN={1516-635X},  url={https://doi.org/10.1590/S1516-635X2005000200001},  DOI={10.1590/S1516-635X2005000200001},  number={2},  journal={Brazilian Journal of Poultry Science},  publisher={Fundação de Apoio à Ciência e Tecnologia Animal},  author={Hunton, P},  year={2005},  month={Apr},  pages={67–71} }