Postigo, J.M. m.fl. (2010). «Patterns of extinction and persistence of Arctotertiary flora in Iberia during the Quaternary». Review of Palaeobotany and Palynology. 162 (3): 416–426. ISSN0034-6667. doi:10.1016/j.revpalbo.2010.02.015.
Postigo, J.M. m.fl. (2010). «Patterns of extinction and persistence of Arctotertiary flora in Iberia during the Quaternary». Review of Palaeobotany and Palynology. 162 (3): 416–426. ISSN0034-6667. doi:10.1016/j.revpalbo.2010.02.015.