1. Bruder, G. A. Comparisons of individual and cultural response hierarchies based on continued association. Journal of Verbal Learning & Verbal Behavior, 1968, 7, 1119–1121.
2. Cramer, P. A study of homographs. In L. Postman & G. Keppel (Eds.), Norms of word association. New York: Academic Press, 1970.
3. Kausler, D. H., & Kollasch, S. F. Word associations to homographs. Journal of Verbal Learning & Verbal Behavior, 1970, 9, 444–449.
4. Lorge, I., & Thorndike, E. L. A semantic count of English words. New York: Teachers College, 1938.
5. Palermo, D. S., & Jenkins, J. J. Word association norms: Grade school through college. Minneapolis: University of Minnesota Press, 1964.