1. 1) ISLER H. Generating shell Shapes by Physical Experiments. Bulletin of the International Association for Shell and Spartial Structures(IASS). (1993) vol.Vol. 34, p.53-63.
2. 5) KOLLEGGER J. Analysis of a Free-Formed Reinforced Concrete Model Shell. Proceedings of 2nd International Conference on Computer Aided Analysis and Design of Concrete Structures. Pineridge Press. (1990)
3. 6) RAMM E. Heinz Isler Schaler. Stuttgart, Karl Kramer Verlag. (1989)
4. 7) RAMM E. The Challenge of Structural Optimization. Proceedings of the Second International Conference on Computational Structures Technology, Athens, Greece. (1994)
5. 8) MAUTE K. Adaptive Techniques in Topology Optimization. Proceedings of Fifth AIAA/USAF/NASA/ISSMO Symposium on Multidisciplinary Analysis and Optimization, September 7-9, 1994, Panama. (1994) p.1-11.