Reference

Peter Stassen, Etienne Steurbaut, J. Sprong, Andre Bornemann, Tanja J. Kouwenhoven, Peter Schulte, M. Youssef, Robert Speijer (2011): Multiple environmental perturbations in the Nile Basin, Egypt: expressions of hydrothermals? – Berichte der Geologischen Bundesanstalt – 85: 157.