1. The diagnosis of the causes of epiphora;Jones;Am. J. Ophth.,1969
2. Callahan, A.: Reconstructive Surgery of the Eyelids and Ocular Adnexa. Birmingham, Alabama, Aesculapius, p. 186.
3. Ophthalmic optics and refraction;Duke-Elder,1970
4. Absorbable gelatin film (Gelfilm);Pilger;Am. J. Ophth.,1961
5. Surgical Treatment of Xerophthalmia;Bennett,1967