• Impedance controlled pacing rate limits in cardiac pacemakersKink, Andres; Parve, Toomas; Rätsep, IndrekInternational journal of bioelectromagnetism2003 / 1, Advances in Electrocardiology : proceedings of the XXX International Congress of Electrocardiology : ICE2003 : June 11-14, 2003, Helsinki, Finland, p. 63-64