1. Categorical hierarchies: Levels of knowledge and skill;Blewitt;The Genetic Epistemologist,1989
2. Understanding categorical hierarchies: The earliest levels of skill;Blewitt,1992
3. The development of taxonomic structure in lexicalmemory;Blewitt;Journal of Experimental Child Psychology,1991
4. Development, schooling and the acquisition of knowledge about knowledge;Brown,1977
5. The role of conceptual knowledge in the development of organization in children's memory;Bjorklund,1985