Low power location protocol based on ZigBee Wireless Sensor Networks. - Luís Brás; Marco Oliveira; Nuno Borges de Carvalho; Pedro Pinho (IPIN, 2010)

Indoor/outdoor management system compliant with Google Maps and Android® OS. - Ludimar Guenda; Luís Brás; Marco Oliveira; Nuno Borges Carvalho (EUROCON, 2011)