Diaz-Gonzalez, T. E., Penas-Merino, A., Lopez-Pacheco, M. J., Perez-Morales, C. and Llamas-Garcia , F. (1989) “The Classe Cisto-Lavanduletea in the province of León”, Acta Botanica Malacitana, 14, pp. 226–230. doi: 10.24310/abm.v14i.9384.