@article{Guzik:2020,
author
=
"P.Guzik and J.Piskorski",
title
=
"Asymmetric properties of heart rate microstructure",
journal
=
"Journal of Medical Science",
volume
=
"Vol. 89",
number
=
"iss. 2",
pages
=
"121--131",
year
=
"2020",
}