BroadbentD. E. (1977). Levels, hierarchies and the locus of control. Quarterly Journal of Experimental Psychology, 29, 181-201.
2.
HollerbachJ. (1981). An oscillation theory of handwriting. Biological Cybernetics, 39, 139-56.
3.
RumelhartD. & NormanD. (1982). Simulating a skilled typist: a study of skilled cognitive-motor performance. Cognitive Science (In press) (or see their chapter in Cooper above).