@article{ref1,
title="Smoking and impairment of performance",
journal="Medical journal of Australia",
year="1978",
author="Hill, D. and Larcombe, I. and Refshauge, J. G.",
volume="2",
number="2",
pages="60-63",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0025-729X",
doi="",
url="http://dx.doi.org/"
}