ex1223b.gms:

References:

• GAMS Development, Reformulation of Models from Handbook of Test Problems in Local and Global Optimization.
• Yuan, X, Zhang, S, and Pibouleau, L, A Mixed-Integer Nonlinear-Programming Method for Process Design. RAIRO - Recherche Operationnelle-Operations Research 22 (1988), 331-346.
• Original source: MINLP Model of Chapter 12 ex12.2.3.gms from Floudas e.a. Test Problems

Point: p1 
Best known point (p1): Solution value 4.58 (global optimum, BARON certificate)