An Interoperable GIS Solution for the Public Administration. - Artur Rocha; João Correia Lopes; Luís Bártolo; Rui Chilro (EGOV, 2003)

Public Discussion of Oporto's Municipal Master Plan: An e-Democracy Service Supported by a Geographical Information System. - Marco Amaro Oliveira; Alexandre Valle de Carvalho; Luís Bártolo (EGOV, 2004)