Modeling The Structure Of Collaborative Networks: Some Contributions. - António Lucas Soares; Jorge Pinho de Sousa; Francisco Barbedo (PRO-VE, 2003)

RODA and Crib : A Service-Oriented Digital Repository. - José Carlos Ramalho; Luís Corujo; Francisco Barbedo; Rui Castro; Luis Faria; Miguel Ferreira (iPRES, 2008)