@article{ref1,
title="The fracture resistance of industrially damaged safety glass lenses, plano and prescription--an expanded study",
journal="American journal of optometry and archives of American Academy of Optometry",
year="1964",
author="Silberstein, I. W.",
volume="41",
number="",
pages="199-221",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-9408",
doi="",
url="http://dx.doi.org/"
}