@article{Piskorski:2011,
author
=
"J.Piskorski and P.Guzik",
title
=
"Asymmetric properties of long-term and total heart rate variability",
journal
=
"Medical and Biological Engineering and Computing",
volume
=
"Vol. 49",
number
=
"no 11",
pages
=
"1289--1297",
year
=
"2011",
}