- Floudas, C A, Pardalos, P M, Adjiman, C S, Esposito, W R, Gumus, Z H, Harding, S T, Klepeis, J L, Meyer, C A, and Schweiger, C A, Handbook of Test Problems in Local and Global Optimization. Kluwer Academic Publishers, 1999.
- Visweswaran, V, and Floudas, C A, Computational Results for an Efficient Implementation of the GOP Algorithm and its Variants. In Grossmann, I E, Ed, Global Optimization in Engineering Design. Kluwer Books, 1996.
- Original source: Global Model of Chapter 5 ex5.3.2.gms from Floudas e.a. Test Problems
Best known point: p1 with value 1.8642