1. Louis ex rel. Welles vs. Metropolitan Transit Commission, Case No. 437601, District Court of Minnesota, Second Division of Ramsey, 1980.
2. A survey of the factors limiting the visual fields of motor vehicle drivers in relation to minimum visual fields and visibility standards;Kite;Br. J. Physiol. Opt.,1961
3. National Safety Council: Accident Facts. Chicago, 1967.
4. Relationship of ocular pathology and driving impairment;Keeney;Trans. Pa. Acad. Ophthalmol. Otolaryngol,1968
5. Abnormalities of the central visual pathways contributing to seven Maryland traffic accidents;Freytag;J.A.M.A.,1969