@article{ref1,
title="Health hazards of vanadium-containing residual oil ash",
journal="Industrial medicine and surgery",
year="1956",
author="Mcturk, L. C. and Hirs, C. H. and Eckardt, R. E.",
volume="25",
number="1",
pages="29-36",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0019-8536",
doi="",
url="http://dx.doi.org/"
}