Bruno Martins Hugo Manguinhas José Luis Borbinha Extracting and Exploring the Geo-Temporal Semantics of Textual Resources. 1-9 2008 ICSC http://doi.ieeecomputersociety.org/10.1109/ICSC.2008.86 conf/semco/2008 db/conf/semco/icsc2008.html#MartinsMB08