@article{ufdlsleep2012,
title = {Sleep Stage Classification using Unsupervised Feature Learning},
author = {L\"{a}ngkvist, Martin and Karlsson, Lars and Loutfi, Amy},
journal = {Advances in Artificial Neural Systems},
volume = 2012,
note = {doi:10.1155/2012/107046},
year = 2012
}