Peinado, M.; Aguirre, J.L.; Delgadillo, J.; Martínez-Parras, J.M. 2005. A phytosociological survey of the chionophilous communities of western North America. Part I: temperate and Mediterranean Associations. Plant Ecology. 180(2): 187-241.

Peinado, M.; Aguirre, J.L.; Delgadillo, J.; Martínez-Parras, J.M. 2005. A phytosociological survey of the chionophilous communities of western North America. Part I: temperate and Mediterranean Associations. Plant Ecology. 180(2): 187-241.