//-->
Inventory Control and Regenerative Processes.
Bazsa, E.M., (1998)
On Classes of Generalized Convex Functions, Farkas-Type Theorems and Lagrangian Duality
Frenk, J.B.G., (1997)
Introduction to Convex and Quasiconvex Analysis
Frenk, J.B.G., (2001)