@article{tormena_lacerda jr._oliveira_2010,  title={Revisiting the stability of endo/exo Diels-Alder adducts between cyclopentadiene and 1,4-benzoquinone},  volume={21},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532010000100017},  DOI={10.1590/S0103-50532010000100017},  number={1},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Tormena, Claudio F. and Lacerda Jr., Valdemar and Oliveira, Kleber T. de},  year={2010},  pages={112–118} }