@article{Villalva_2013, title={Do dry ledges reduce the barrier effect of roads?}, volume={57}, ISSN={0925-8574}, url={http://dx.doi.org/10.1016/j.ecoleng.2013.04.005}, DOI={10.1016/j.ecoleng.2013.04.005}, journal={Ecological Engineering}, publisher={Elsevier BV}, author={Villalva, Pablo and Reto, Dyana and Santos-Reis, Margarida and Revilla, Eloy and Grilo, Clara}, year={2013}, month=Aug, pages={143–148} }