@article{ref1,
title="Visual field defects in retinal disease",
journal="UCLA forum in medical sciences",
year="1969",
author="Harrington, D. O.",
volume="8",
number="",
pages="485-512",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0082-7134",
doi="",
url="http://dx.doi.org/"
}