by Reimann, Marc, Laumanns, Marco
Published in Computers & operations research (01.06.2006)

by Martins, Pedro
Published in Computers & operations research (01.08.2007)

by Gouveia, Luis, Martins, Pedro
Published in Networks (01.01.2000)

by Gouveia, Luis, Hall, Leslie
Published in Networks (01.12.2002)

by Amado, Lígia, Barcia, Paulo
Published in European journal of operational research (22.11.1996)