@conference {2013,
	title = {Time-Frequency and Time-Scale Characterisation of the Beat-by-Beat High-Resolution Electrocardiogram},
	booktitle = {Sixth Portuguese Conference on Biomedical Engineering Proceedings},
	year = {2001},
	author = {Batista, AG and Rodrigues, J.M. and Ortigueira, M.D.}
}
