@article{ref1,
title="Visual fields of the scuba diver",
journal="Human factors",
year="1965",
author="Egstrom, G. H. and Christianson, R. A. and Weltman, G.",
volume="7",
number="5",
pages="423-430",
abstract="Abstract unavailable.",
language="",
issn="0018-7208",
doi="",
url="http://dx.doi.org/"
}