@article{McKinney_2011,
title={Covert Waking Brain Activity Reveals Instantaneous Sleep Depth},
volume={6},
ISSN={1932-6203},
url={http://dx.doi.org/10.1371/journal.pone.0017351},
DOI={10.1371/journal.pone.0017351},
number={3},
journal={PLoS ONE},
publisher={Public Library of Science (PLoS)},
author={McKinney,
Scott M. and Dang-Vu,
Thien Thanh and Buxton,
Orfeu M. and Solet,
Jo M. and Ellenbogen,
Jeffrey M.},
editor={Rogers,
Naomi},
year={2011},
month=mar,
pages={e17351} }