Besler, Helga (2008) The Great Sand Sea in Egypt: Formation, Dynamics and Environmental Change: A Sediment-Analytical Approach Elsevier, Amsterdam, page 1 [Архівовано 4 березня 2021 у Wayback Machine.], ISBN 978-0-444-52941-1
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Besler, Helga (2008) The Great Sand Sea in Egypt: Formation, Dynamics and Environmental Change: A Sediment-Analytical Approach Elsevier, Amsterdam, page 1 [Архівовано 4 березня 2021 у Wayback Machine.], ISBN 978-0-444-52941-1