[1]
Fernández González, F. and Molina, A. 1988. Phytosociological data on ash trees from Guadarrama Mountain range. Acta Botanica Malacitana. 13, (Dec. 1988), 217–228. DOI:https://doi.org/10.24310/Actabotanicaabmabm.v13i.9433.