1. Crone, R. A. (1973). Diplopia, pp. 37-38. Excerpta Medica: Amsterdam.
2. Experimental denervation of ocular muscles: a critique of the concept of 'ocular myopathy';Drachman, D.A.; Wetzel, N.; Wasserman, M.; Naito, H.;Archives of Neurology,1969
3. Muscle Biopsy: A Modern Approach;Dubowitz, V.; Brooke, M.H.,1973
4. Histochemistry of primate extraocular muscles and changes of denervation;Durston, J.H.J.;British Journal of Ophthalmology,1974
5. Histochemistry of extraocular muscles. Illrd international congress on muscle diseases;Goebel, H.H.; Helveston, E.; Eichholtz, W.;Abstract,1974