1. “Improved Oil Recovery Could Help Ease Energy Shortage,”;Geffen;World Oil,1973
2. “The Potential Contribution of Enhanced Recovery Technology to Domestic (U.S.A.) Crude Oil Reserves,”;Hasiba;Erdoel-Erdgas-Zeitschrift,1975
3. Sharp, James M., “The Potential of Enhanced Oil Recovery Processes,” Paper SPE 5557, presented at the 50th Annual Fall Meeting of the Society of Petroleum Engineers of AIME, Dallas, Texas, Sept. 28–Oct. 1, 1975.
4. Secondary and Tertiary Oil Recovery Processes;Poettman,1974
5. “A Low-Tension Waterflooding Process,”;Foster;J. Pet. Technol.,1973