An Agent Infrastructure to set Collaborative Environments. - Carlos José M. Olguín; Armando Luiz N. Delgado; Ivan Luiz Marques Ricarte (J. Educ. Technol. Soc., 2000)

Monitoring Learners Activities in a Collaborative Environment. - Armando Luiz N. Delgado; Carlos José M. Olguín; Ivan Luiz Marques Ricarte (CRIWG, 2001)