@article{ref1,
title="The use of the illumination scale for the detection of small errors in refraction and in their correction",
journal="Journal of experimental psychology",
year="1920",
author="Ferree, C. E. and Rand, Gertrude",
volume="3",
number="4",
pages="243-256",
abstract="This paper discusses the relation of the illumination scale to the detection of small errors in refraction and in their correction. Topics include: (1) astigmatism (without a cycloplegic); (2) irregular astigmatism; and (3) astigmatism (with cycloplegic). (PsycINFO Database Record (c) 2012 APA, all rights reserved)<p />",
language="",
issn="0022-1015",
doi="10.1037/h0068559",
url="http://dx.doi.org/10.1037/h0068559"
}