Providing Universal Access to History Textbooks: A Modified GIS Case. - Dieter Pfoser; Alexandros Efentakis; Thanasis Hadzilacos; Sophia Karagiorgou; Giorgos Vasiliou (W2GIS, 2009)

Language-Independent Access to History Textbooks: Utilizing GIS Functionality with Spatiotemporal and Thematic Metadata. - Dieter Pfoser; Alexandros Efentakis; Thanasis Hadzilacos; Sophia Karagiorgou; Giorgos Vasiliou (Trans. GIS, 2010)