Supporting statistical, graphic/cartographic, and domain literacy through onlinelearning activities: MapStats for Kids. - Alan M. MacEachren; Mark Harrower; Bonan Li; David Howard; Roger Downs; Mark Gahegan (DG.O, 2002)

MapStats for Kids: Developing and Assessing Web-Based Tools to Foster Geographic and Statistical Literacy in Children. - Stephen Crawford; Sven Fuhrmann; Bonan Li; Alan M. MacEachren; Mark Gahegan; Roger Downs (DG.O, 2003)

Assessing the Usefulness and Usability of Online Learning Activities: MapStats for Kids. - Sven Fuhrmann; John Bosley; Roger Downs; Mark Gahegan; Bonan Li; Stephen Crawford; Alan M. MacEachren (DG.O, 2003)

The Refraction of Space: A Radical Reversal of Direction - (Abstract). - Roger Downs (Spatial Cognition, 2010)