@article{victório_lage_sato_2012,  title={Tissue culture techniques in the proliferation of shoots and roots of Calendula officinalis},  volume={43},  ISSN={1806-6690},  url={https://doi.org/10.1590/S1806-66902012000300017},  DOI={10.1590/S1806-66902012000300017},  number={3},  journal={Revista Ciência Agronômica},  publisher={Universidade Federal do Ceará},  author={Victório, Cristiane Pimentel and Lage, Celso Luiz Salgueiro and Sato, Alice},  year={2012},  month={Jul},  pages={539–545} }