VARGAS, J. A. C. Periodic properties of the chemical elements and their brief implications in biological systems and the agricultural sciences. SciELO Preprints, 2023. DOI: 10.1590/SciELOPreprints.6148. Disponível em: https://preprints.scielo.org/index.php/scielo/preprint/view/6148. Acesso em: 19 jun. 2024.