The effect of low-frequency oscillations on cardio-respiratory synchronization - Observations during rest and exerciseD. A. Kenwright, A. Bahraminasab, A. Stefanovska and P. V.E. McClintockEur. Phys. J. B, 65 3 (2008) 425-433DOI: https://doi.org/10.1140/epjb/e2008-00199-4