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Yongzhong Wu and  Ping Ji,  Solving the Quadratic Assignment Problems by a Genetic Algorithm with a New Replacement Strategy.   journal   = {International Journal of Mathematical, Computational, Physical, Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology. June 2007, vol. 6(6). 269 - 273[viewed 25 May 2018]. Available from: http://waset.org/publications/8342.