1. The etiology and pathogenesis of fixation anomalies in strabismus;von Noorden;Trans Am Ophthalmol Soc,1969
2. Binocular Vision and Ocular Motility. Theory and Management of Strasbismus;Burian,1974
3. Atlas of Strabismus;von Noorden,1973
4. Visual acuity in strabismic amblyopia under monocular and binocular conditions;von Noorden;Arch Ophthalmol,1966
5. Extrafoveal visual acuity as measured with Snellen test-letters;Ludvigh;Am J Ophthalmol,1941