%0 Journal Article %T Optimum design of nonlinear steel space frames via tabu search method %A DEÄžERTEKİN, S.Ã. %A HAYALİOÄžLU, M.S. %A ÜLKER, M. %J Sigma Journal of Engineering and Natural Sciences %D 2006 %V 24 %P 117-128 %R