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Avila,Anna;Queralt-Mitjans,Ignasi;Alarcón,Marta. (1997).«Mineralogical composition of African dust delivered by red rains over northeastern Spain»Journal of Geophysical Research102: 21977–21996.doi:10.1029/97JD00485.Bibcode:1997JGR...10221977A..
R. S. Cerveny;R. C. Balling. (1998-08-06).«Weekly cycles of air pollutants, precipitation and tropical cyclones in the coastal NW Atlantic region»Nature394(6693): 561–563.doi:10.1038/29043.Bibcode:1998Natur.394..561C..
Avila,Anna;Queralt-Mitjans,Ignasi;Alarcón,Marta. (1997).«Mineralogical composition of African dust delivered by red rains over northeastern Spain»Journal of Geophysical Research102: 21977–21996.doi:10.1029/97JD00485.Bibcode:1997JGR...10221977A..