1. Smith , T.K. J.B. Lawson Y.C. Chiu 1972
2. Dilgren , R.E. G.J. Hirasaki H.J. Hill D.G. Whitten
3. Needham , R.B. 1968
4. Dilgren , R.E. A.R. Deemer K.B. Owens Presentation at the 52nd Annual California Regional Meeting of the Society of Petroleum Engineers San Francisco, CA 1982