Shuxin Ding,Chen Chen,Qi Zhang,Bin Xin,Panos M. (Uni of Florida Pardalos USA)
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Vlontzos, George (University of Thessaly, Greece),Ampatzidis, Yiannis (University of Florida, USA),Manos, Basil (Aristotle University of Thessaloniki, Greece),Pardalos, Panos M. (Uni of Florida, USA)
(1)