Educational Technology, Research and Development, Vol. 55, No. 5. (2007), pp. 439-459.
Computers & Education, Vol. 51, No. 1. (August 2008), pp. 54-66.
Language and Cognitive Processes, Vol. 22, No. 2. (2007), pp. 272-296.
Journal of Logic, Language and Information, Vol. 16, No. 2. (April 2007), pp. 121-140.
Semiotica, Vol. 8, No. 4. (1973), pp. 289-327.
Language, Vol. 50, No. 4. (1974), pp. 696-735.
(1996), pp. 41-44.
Memory and Cognition, Vol. 32, No. 8. (2004), pp. 1346-1354.
Journal of Memory and Language, Vol. 40, No. 2. (1999), pp. 230-262.
Social Development, Vol. 9, No. 3. (2000), pp. 337-347.
Language & Communication, Vol. 14, No. 4. (October 1994), pp. 353-376.
Cognition, Vol. 47, No. 1. (1993), pp. 1-24.
Journal of Psycholinguistic Research, Vol. V27, No. 5. (1998), pp. 541-571.