Galán De Mera, A., Deil, U., & Vicente Orellana, J. A. (2010). Roadside vegetation in the Campo de Gibraltar (SW Spain) and on the Tangier peninsula (NW Morocco). Studia Botanica, 23. Recuperado a partir de https://revistas.usal.es/historico/index.php/0211-9714/article/view/6147