@article{ref1,
title="Industrial back injuries, bell system; results of a three-year survey",
journal="AMA archives of industrial health",
year="1957",
author="Schowalter, E. J. and Shilling, J. W. and Wilkins, G. F.",
volume="15",
number="2",
pages="91-100",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0567-3933",
doi="",
url="http://dx.doi.org/"
}