@article{ref1,
title="Visual aptitude tests with use of KVA tester--a study of the testing method and suggestions for improvement of the standard for judgment",
journal="Annual report of the research institute of environmental medicine, Nagoya University",
year="1969",
author="Suzumura, A.",
volume="17",
number="",
pages="59-72",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0469-4759",
doi="",
url="http://dx.doi.org/"
}