@article{ref1,
title="Fracturing and safety properties of glass spectacle lenses having back surface vinyl membranes",
journal="American journal of optometry and archives of American Academy of Optometry",
year="1972",
author="Kors, K. K. and Flom, M. C. and Adams, A. J.",
volume="49",
number="6",
pages="471-479",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-9408",
doi="",
url="http://dx.doi.org/"
}