author = "M{\'a}rio Serafim Nunes",
   title = "Comunica{\c c}{\~a}o de Dados em Modo Trama com Servi{\c c}os Diferenciados",
   number = 102604,
   howpublished = "National Patent",
   note = "issued at Publica{\c c}{\~a}o de resumo no Boletim de Propriedade Ind",
   year = 2001,
   month = may,
   BibTexOrigem = "1546 www.Inesc-ID.pt 2023-09-21"

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