Egea, J. M., and X. Llimona. 1982. “The Silicicolous Lichens of the Cabo De Palos Mountain Ranges; Floristic, Phytosociological and Ecological Study)”. Acta Botanica Malacitana 7 (December): 11-38. https://doi.org/10.24310/Actabotanicaabmabm.v7i.9722.