Freitas S.A. P. AfonsoM. J. Silva2010-05-212014-11-142010-05-212014-11-1420062006http://hdl.handle.net/10451/15126http://repositorio.ul.pt/handle/10455/5943engComputer ScienceMobile Geotumba: Geographic Information Retrieval System for Mobile Devicesjournal article