Non-invasive beat-to-beat cardiac output monitoring by an improved method of transthoracic bioimpedance measurement. - Jürgen Fortin; W. Habenbacher; Axel R. Heller; A. Hacker; R. Grüllenberger; J. Innerhofer; H. Passath; Ch. Wagner; G. Haitchi; Doris Flotzinger; R. Pacher; Paul Wach (Comput. Biol. Medicine, 2006)