@article{Roldán_Lapona_Demente_1997, title={Informaciones}, url={https://isegoria.revistas.csic.es/index.php/isegoria/article/view/195}, number={16}, journal={Isegoría}, author={Roldán, Concha and Lapona, Francisco I. and Demente, Violeta}, year={1997}, month={may}, pages={275–285} }