Visual structures for image browsing. - Ricardo da Silva Torres; Celmar G. Silva; Claudia Bauzer Medeiros; Heloisa Vieira da Rocha (CIKM, 2003)

A Case Study of the Development of e-Learning Systems Following a Component-based Layered Architecture. - Delano M. Beder; André Constantino Silva; Joice Lee Otsuka; Celmar G. Silva; Heloisa Vieira da Rocha (ICALT, 2007)