1. Optimum structural design;Kirsch,1981
2. Optimization decomposition - a step from hierarchic to non-hierarchic systems;Sobiszczanski-Sobieski,1988
3. Static multilevel systems;Schoeffler,1971
4. Engineering design applications of multilevel optimization methods;Barthelemy,1989
5. Two coordination principles and their application in large scale systems control;Mesarovic,1969