1. A contribution to the pathogeny of concomitant squinting;Grut;Trans. Ophthalmol. Soc. U.K.,1890
2. Ocular Motility and Strabismus;Duke-Elder,1973
3. The measurement of heterophoria;Cridland;Br. J. Ophthalmol,1947
4. Squint;Worth,1959
5. Ophthalmic studies of curare and curarelike drugs in man, Am;Drucker;J. Ophthalmol,1951