Biblio
,
Witterung und Klima, 11th ed. Stuttgart: B.G. Teubner Verlag, 2005.
, “Water Quality Assessment of the River Nile System: An Overview”, Biomedical And Environmental Science, vol. 17, pp. 87-100, 2004.
, “Water Issue in Egypt: Resources, Pollution and Protection Endeavors”, European Journal of Occupation and Environmental Medicine, vol. 8, pp. 3-21, 2002.
, Wege zu einem nachhaltigen Umgang mit Süßwasser, vol. Band 1997. Berlin-Heidelberg: Springer-Verlag, 1997.