A Comparison of Approaches for Geospatial Entity Extraction from Wikipedia. - Daryl Woodward; Jeremy Witmer; Jugal Kalita (ICSC, 2010)

Extracting and Displaying Temporal and Geospatial Entities from Articles on Historical Events. - Rachel Chasin; Daryl Woodward; Jeremy Witmer; Jugal Kalita (Comput. J., 2014)