title = {A new improvement for a $K$ shortest paths algorithm},
author = {Ernesto de Queir{\'o}s Vieira Martins and Marta Margarida Braz Pascoal and Jos{\'e} Lu{\'\i}s Esteves dos Santos},
journal = {Investiga{\c{c}}{\~a}o Operacional},
volume = {21},
pages = {47--60},
year = {2001},
url = {}}

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