By Lopes dos Santos P.   Ramos J. A.   Martins de Carvalho J.L.   in International Journal of Systems Science

ISSN:1464-5319|39|9|897-911

Taylor & Francis Ltd‎(2008)‎

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By Delgado Catarina J. M.   Lopes dos Santos P.   Martins de Carvalho J. L.   in International Journal of Systems Science

ISSN:1464-5319|37|8|565-574

Taylor & Francis Ltd‎(2006)‎

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