Kasthurirangan Gopalakrishnan Halil Ceylan Nii O. Attoh-Okine Intelligent and Soft Computing in Infrastructure Systems Engineering 259 2009 http://dx.doi.org/10.1007/978-3-642-04586-8 978-3-642-04585-1 Studies in Computational Intelligence Springer db/series/sci/sci259.html