@article{Arroyo08,
   author ={Jose Elias Claudio Arroyo and Pedro Sampaio Vieira and Dalessandro Soares Vianna},
   title = {{A GRASP algorithm for the multi-criteria minimum spanning tree problem}},
   journal = {Annals of Operations Research},
   volume = {159},
   number = {1},
   pages = {125--133},
   month = {March},
   year = {2008}
}

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