Yih-Farn Robin Chen Giuseppe Di Fabbrizio David C. Gibbon Rittwik Jana Serban Jora Bernard Renger Bin Wei Geotracker: geospatial and temporal RSS navigation. 41-50 2007 conf/www/2007 WWW http://doi.acm.org/10.1145/1242572.1242579 db/conf/www/www2007.html#ChenFGJRW07