Filtering mechanisms for the visualization of geo-referenced information. - Maria Beatriz Carmo; Sérgio Freitas; Ana Paula Afonso 001; Ana Paula Cláudio (GIR, 2005)

A personalized visualization tool for geo-referenced information. - Sérgio Freitas; Maria Beatriz Carmo; Ana Paula Afonso 001 (ITiCSE, 2005)

Design and Selection Criteria for a National Web Archive. - Daniel Gomes; Sérgio Freitas; Mário J. Silva (ECDL, 2006)

Handling Locations in Search Engine Queries. - Bruno Martins 001; Mário J. Silva; Sérgio Freitas; Ana Paula Afonso 001 (GIR, 2006)

Distributed Vector Based Spatial Data Conation Services. - Sérgio Freitas; Ana Paula Afonso 001 (GEOINFO, 2012)

A Systematic Review of the Factors that Impact the Prediction of Retention and Dropout in Higher Education. - Edmilson Cosme Silva; Sérgio Freitas; Cristiane Soares Ramos; Amanda Emilly Muniz De Menezes; Leticia Karla Soares Rodrigues De Araujo (HICSS, 2023)

Time-constrained learning. - Sérgio Freitas; Eduardo Sany Laber; Pedro Lazera; Marco Molinaro 001 (Pattern Recognit., 2023)