Peng, D. Y., and Robinson, D. B. A New Two-Constant Equation of State. Industrial and Engineering Chemistry: Fundamentals. 1976, 15: 59–64. doi:10.1021/i160057a011.
J. Richard Jr. Elliott, S. Jayaraman Suresh, Marc D. Donohue. A Simple Equation of State for Nonspherical and Associating Molecules. Ind. Eng. Chem. Res. 1990, 29 (7): 1476–1485. doi:10.1021/ie00103a057.
