Van Poollen, H.K., “Fundamentals of Enhanced Oil Recovery”, PennWell Books, Tulsa, Oklahoma, (1980).
 Christensen, J. R., Stenby, E.H., Lyngby, DTU. and Skauge, Review of WAG Field Experience, SPE, Norsk Hydro ASA,Bergen, (1998).
 Nybraaten, G., Svorstoel, and Andfossen, P. O., WAG Pilot Evaluation for the Snorre Flcld,7th European IOR, Moscow, Russia,(1993).
 Stenmark, H. and Andfossen, P. O., Snorre WAG Pilot-A Case Study, 8th European IOR, Vienna, Austria, (1996).
 Slotte, P. A., Stenrnark, H. and Aurd, T., Snorre WAG Pilot, Norwegian Petroleum Directorate, RUTH 1992 (1996).
 Jensen, J., Nesteby, H. and Slotte. P. A., Brage WAG Pilot, Norwegian Petroleum Directorate, RUTH 1992 (1996).
 Skauge, A. and Berg, E., Immiscible WAG Injection in the Fensfjord Formation of the Brage Oil Field, paper number 014, from EAGE, 9th European Symposium on Improved Oil Recovery, The Hague, 20-22 Oct. (1997).
 Skauge, A. and Aarra, M., Effect of Wettability on the Oil Recovery by WAG, Proceedings7th European Symposium on Improved Oil Recovery, Moscow, (1993).
 Skauge, A. and Larsen, J. A., New Approach to Model the WAG Process, Proceedings, 15th International Energy Agency,Collaborative Project on Enhanced Oil Recovery, Workshop and Symposium, Bergen, Norway, 28-31 August, (1994).
 Magruder, J. B., Stiles, L.H. and Yelverton, T. D., “A Review for the Means San Andres Unit Full-Scale CO2 Tertiary Project”,SPE 17349, EOR Symposium, Tulsa, (1988).
 Prieditis, J., Wolle, C. R. and Notz, P. K., A Laboratory and Field Injectivity Study CO2 WAG In the San Andres Formation of West Texas, SPE 22653, 66th ATCE, Dallas, (1991).
 Roper, M. K., Cheng, C. T., Varnon, J. E., Pope, G.A. and Sepehrnoori, K., Interpretation of a CO2 WAG Injectivity Test in the San Anclres Formation Using a Compositional Simulator,SPE 24163, 8th EOR, Tulsa, (1992).
 Claridge, E. L., CO2 Flooding Strategy in a Communicating Layered Reservoir,JPT Dec. (1982).
 Chase Jr., C.A. and Ttid, D., Numerical Simulation of CO2 Flood Performance”,SPE 10514, JPT, Dec. (1984).
 Stephenson, D.J., Graham, A.G. and Luhning R, W., Mobility Control Experience in the Joffre Viking Miscible CO2 Flood,SPE Reservoir Engineering, Aug. (1993).
 Walker, J.W. and Turner, J. L., Performance of Seelington Zone 20B-07 Enriched-Gas-Drive Project,SPE 1884, JPT, April, (1968).
 Robie, Jr., D.R., Roedell, J.W. and Wackowski, R. K., Field Trial of Simultaneous Injection of CO2 and Water, Rangely Weber Sand Unit, Colorado (1998).
 Ma, T. D., Rugen, J.A. and Stoisits, R. F., Simultaneous Water and Gas Injection Pilot at the Kuparuk River Field, Reservoir Impact, SPE 30726, ATCE, Dallas, (1995).
 Hong, K.C. and Stevens, C. E., Water-Alternating-Steam Process Improves Project Economics at West Coalinga, SPE Res. Eng., November, Texas (1992).
 Skauge, A., Simulation Studies of WAG Using Three - Phase Relative Permeability Hysteresis Models, Paper Number 015, Proceeding fromEAGE, 9th European Symposium on Improved Oil Recovery,The Hague, 20-22 Oct. (1997).
 Helm, L.W., Propane-Gas-Water Miscible Floods In Watered-Out Areas of the Adena Field,SPE 3774, JPT Oct., (1972).
 Watts, R. J., Conner, W. D., Wasson, J.A. and Yost, A.B., CO2 Injection for Tertiary Oil Recovery, Granny’s Creek Field, Clay County, West Virginia, SPE 10693, 3rd EOR, Tulsa, (1982).
 Dyes, A, B., Bensimina, A., Saadi, A.M. and Khelil, C., Alternate Injection of HPG and Water, Two Well Pilot, SPE 4082, 47th Annual Fall Meeting,San Antonio, Texas, (1972).