Analysis of Physiological Meaning of Detrended Fluctuation Analysis in Heart Rate Variability Using a Lumped Parameter Model - Rojo-Alvarez, J. L.; Sanchez-Sanchez, A.; Barquero-Percz, O.; Goya-Esteban, R.; Everss, E.; Mora-Jimenez, I.; Garcia-Alberola, A.; (Computers In Cardiology, 2007)