1. Anatomy of the Orbit;Beard,1969
2. A modified lacrimal probe;Beyer;Arch. Ophthalmol.,1974
3. Lacrimal trephine;Beyer;Arch. Ophthalmol.,1976
4. Lid trauma;Beyer;Int. Ophthalmol. Clin.,1974
5. The radiology of the lacrimal system;Campbell;Brit. J. Radiol,1964