@article{ref1,
title="That Snellen fraction",
journal="Australasian journal of optometry",
year="1934",
author="Hayes-Town, F. G.",
volume="17",
number="6",
pages="266-267",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0817-881X",
doi="10.1111/j.1444-0938.1934.tb05986.x",
url="http://dx.doi.org/10.1111/j.1444-0938.1934.tb05986.x"
}