Henrik Bettermann, Peter Van Leeuwen. Evidence of phase transitions in heart period dynamics. Biological Cybernetics, 78(1):63-70, 1998. [doi]
@article{BettermannL98,
title = {Evidence of phase transitions in heart period dynamics},
author = {Henrik Bettermann and Peter Van Leeuwen},
year = {1998},
doi = {10.1007/s004220050413},
url = {http://dx.doi.org/10.1007/s004220050413},
researchr = {https://researchr.org/publication/BettermannL98},
cites = {0},
citedby = {0},
journal = {Biological Cybernetics},
volume = {78},
number = {1},
pages = {63-70},
}