1. Hoek, Loos, Information about on-site air separation, Schiedam, The Netherlands (no date available)
2. Cornelissen, R. L., Hirs, G. G. and Kotas, T. J., in Proc. of Second Law Analysis of Energy Systems: Toward the 21st Century, Vol. Roma, ed. Sciubba E and Moran MJ. 1995, pp. 417–429
3. Kotas, T. J., The Exergy Method of Thermal Plant Analysis. 2nd edition. Krieger, 1995
4. Lie, A. B. K. and Eigeman, P. M., Exercom; Calculating Exergies in Aspen Plus (PC version), User Manual, Comprimo consulting services, Amsterdam, 1994
5. Szargut, J., Morris, D. R. and Steward, F. R., Exergy Analysis of Thermal, Chemical, and Metallurgical processes, Hemisphere Publishing Corporation, 1988