1. Working memory and children’s mental addition;Adams;Journal of Experimental Child Psychology,1997
2. Cognitive arithmetic: A review of data and theory;Ashcraft;Cognition,1992
3. Cognitive psychology and simple arithmetic: A review and summary of new directions;Ashcraft;Mathematical Cognition,1995
4. Working memory;Baddeley,1986
5. Exploring the central executive;Baddeley;Quarterly Journal of Experimental Psychology,1996