Varga, György, and Cristopher-Bastian Roettig. “Identification of Saharan Dust Particles in Pleistocene Dune Sand- Paleosol Sequences of Fuerteventura (Canary Islands)”. Hungarian Geographical Bulletin 67, no. 2 (June 30, 2018): 121-141. Accessed July 21, 2019. http://ojs3.mtak.hu/index.php/hungeobull/article/view/1091.