@article{soído_vasconcellos_diniz_pinheiro_2009,  title={An improvement of calcium determination technique in the shell of molluscs},  volume={52},  ISSN={1516-8913},  url={https://doi.org/10.1590/S1516-89132009000100012},  DOI={10.1590/S1516-89132009000100012},  number={1},  journal={Brazilian Archives of Biology and Technology},  publisher={Instituto de Tecnologia do Paraná - Tecpar},  author={Soído, Cristiane and Vasconcellos, Maurício Carvalho and Diniz, Antônia Gonçalves and Pinheiro, Jairo},  year={2009},  month={Jan},  pages={93–98} }