1. Maps as representations: Expert novice comparison of projection understanding;Anderson;Cognition and Instruction,2002
2. The need for a light and spectroscopy concept inventory for assessing innovations in introductory astronomy survey courses;Bardar;Astronomy Education Review,2006
3. Incidental learning of geospatial concepts across grade levels: map overlay;Battersby;Journal of Geography,2006
4. Comparing representations with relational and EER models;Batra;Management of Computing,1990