1. The clinical measurement of the axial length of the living eye;Rushton;Tr. Ophth. Soc. U. Kingdom,1938
2. Untersuchungen über die Variation und Kovariation der optischen Elemente des menschlichen Auges;Stenström;Acta Ophth.,1946
3. Sorsby, A., Benjamin, B., and Sheridan, M.: Refraction and its components during growth of the eye from the age of three. Medical Research Council, Special Report Series, No. 301, London, 1961.
4. Experience with modified Ridley lenses and others;Epstein;An. Inst. Barraquer,1962
5. Measurements of intraocular distances by ultrasound;Jansson;Acta Ophth.,1963