Authors: Ivanov, PC Bunde, A Amaral, LAN Havlin, S Fritsch-Yelle, J Baevsky, RM Stanley, HE Goldberger, AL

Citation: Pc. Ivanov et al., Sleep-wake differences in scaling behavior of the human heartbeat: Analysis of terrestrial and long-term space flight data, EUROPH LETT, 48(5), 1999, pp. 594-600