1. Syntactic structures;Chomsky,1957
2. Grammatical analysis as part of understanding a sentence;McMahon,1963
3. Some psychological studies of grammar;Miller;Amer. Psychologist,1962
4. Some psychological aspects of grammatical transformations in childhood and adulthood;Slobin,1963
5. The processing of positive and negative information;Wason;Quart. J. exp. Psychol.,1959