1. Biogas for the Egyptian country;Alaa El-Din,1983
2. Salt toxicity in anaerobic digestion;McCarty;J. Water Pollut. Control Fed.,1961
3. Anaerobic digestion of agricultural wastes;Hobson;A.R.C. Res. Rev.,1975
4. Anaerobic treatment process stability;Kroeker;J Water Pollut. Control Fed.,1979
5. Anaerobic digestion of piggery waste;Van Velsen;Neth. J. Agric. Sci.,1979