1. New concepts in infantile glaucoma;Shaffer;Can. J. Ophthalmol,1967
2. Lectures on Glaucoma;Chandler,1965
3. The glaucomatous disc in infants. A suggested hypothesis for disc cupping;Shaffer;Trans. Am. Acad. Ophthalmol. Otolaryngol.,1969
4. Hetherington, J., Shaffer, R.N., and Hoskins, H.D.: The disc in congenital glaucoma. In Etienne, R., and Paterson, G.D. (eds.): XXII Congres International D'Ophthalmologie. International Glaucoma Symposium, Albi, France, 1974. Marseille, France, Diffusion Generale de Librairie, 1975.
5. Pathogenesis of glaucomatous cupping. A new hypothesis;Anderson,1975