1. ABD-EL MALEK, Y. and RIZK, S.G., 1958, Counting of sulfate reducing bacteria in mixed bacterial population:Nature, v. 182, p. 285.
2. AL-SAWAF, F.D.S., 1977, Sulfate reduction and sulfur deposition in the Lower Fars Formation, Northern Iraq:Economic Geology, v. 72, p. 608–618.
3. AREF, M.A.M., 1998, Biogenic Carbonates: Are they a criterion for underlying hydrocarbon accumulations? An example from the Gulf of Suez region, Egypt:American Association of Petroleum Geologists Bulletin, v. 82, p. 336–352.
4. ATTIYA, O.E.A. and AREF, M.A.M., 1996, Fluid inclusions — application in the genesis of some native sulfur deposits in the Gulf of Suez, Egypt, Third International Conference on Geology of the Arab World, Cairo University, abstract, p. 69.
5. BONDAR, M.F., 1959, Strontium auf hydrothermalen lagerstatten, Muniche, 55 p.