@article{López Trigal_2012, title={Prólogo}, url={https://revpubli.unileon.es/index.php/poligonos/article/view/66}, DOI={10.18002/pol.v0i19.66}, number={19}, journal={Polígonos. Revista de Geografía}, author={López Trigal, Lorenzo}, year={2012}, month={jun.}, pages={5–7} }