[1] Guillon M. Automated refraction in aphakia–II. Its repeatability and accuracy compared to conventional techniques. Ophthalmic Physiol Opt. 1986;6:85-9.
[2] Guillon M, Lydon DP. Tear layer thickness characteristics of rigid gas permeable lenses. Am J Optom Physiol Opt. 1986;63:527-35.
[3] Guillon M, Lydon DP, Wilson C. Corneal topography: a clinical model. Ophthalmic Physiol Opt. 1986;6:47-56.

Links to abstracts
[1] http://www.ncbi.nlm.nih.gov/pubmed/3714281
[2] http://www.ncbi.nlm.nih.gov/pubmed/3740207
[3] http://www.ncbi.nlm.nih.gov/pubmed/3714275