Workshop on Distance Learning Environments for Digital Graphic Representation. - Ricardo Azambuja Silveira; Adriane Borda Almeida da Silva; Demetrio Arturo Ovalle Carranza; Antônio Carlos da Rocha Costa; Heloisa Vieira da Rocha; Marcelo Payssé; Mary Lou Maher; Monica Fernandez; Neusa Felix; Rosa Maria Vicari (Intelligent Tutoring Systems, 2004)