@article{ref1,
title="Changes in the visual fields in athletes",
journal="Fiziolohichnyĭ Zhurnal (1955)",
year="1962",
author="Kovalova, O. V.",
volume="8",
number="",
pages="680-684",
abstract="<p>[Abstract unavailable]</p><p>Language: uk</p>",
language="uk",
issn="0015-3311",
doi="",
url="http://dx.doi.org/"
}