Pérez Latorre, A. V., Galán de Mera, A. and Cabezudo, B. (1999) “An approximation to the syntaxonomy of gimnosperms communities in the Betica province (Spain)”, Acta Botanica Malacitana, 24, pp. 257–262. doi: 10.24310/abm.v24i0.8539.