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2. Multilevel optimal design of reinforced concrete structures;Kirsch;Engineering Optimization,1983
3. An improved multilevel structural synthesis;Kirsch;Journal of Structural Mechanics,1985
4. An improved computational approach for multilevel optimum design;Haftka;Journal of Structural Mechanics,1984
5. A linear decomposition method for large optimization problems—blueprint for development;Sobieski-Sobieszczanski,1982