1. A. M. Laursen, Corpus striatum, Acta Physiol. Scand. 59: Suppl. 211 (1963).
2. J. B. Carman, The volume and neurone content of the striatum in man, Proc. Univ. Otago Med. School 44: 49–51 (1966).
3. R. Hassler, Extrapyramidal-motorische Syndrome und Erkrankungen, in Hb. Inn. Med. Vol. V (G. v. Bergmann, W. Frey, H. Schwiegk and R. Jung, eds.) Springer, Berlin, Göttingen, Heidelberg (1953).
4. R. Jung and R. Hassler, The extrapyramidal motor system, in Handbook of Physiology, Sect. 1, Vol. II (J. Field, H. W. Magoun, and V. E. Hall, eds.) American Physiological Society, Washington, D.C. (1960).
5. D. Denny-Brown, The basal ganglia and their relation to disorders of movement, Oxford Univ. Press, London (1962).