@article{ref1,
title="Influence of sleep deprivation on the excretion of metanephrine and normetanephrine",
journal="Activitas nervosa superior",
year="1972",
author="Kuhn, Eric and Rysánek, K. and Kujalová, V. and Brodan, V. and Válek, J.",
volume="14",
number="2",
pages="113-114",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0001-7604",
doi="",
url="http://dx.doi.org/"
}