Signal fidelity requirements in determining measures of cardiac function - Advancing to multichannel impedance cardiography. - Pasi K. Kauppinen; Tiit Kööbi; Jari A. K. Hyttinen; Seppo Kaukinen; Jaakko Malmivuo (EUSIPCO, 2000)

Towards a heart disease diagnosing system based on force sensitive chair's measurement, biorthogonal wavelets and neural networks. - Alireza Akhbardeh; Sakari Junnila; Mikko Koivuluoma; Teemu Koivistoinen; Väinö Turjanmaa; Tiit Kööbi; Alpo Värri (Eng. Appl. Artif. Intell., 2007)

Influences of Digital Band-Pass Filtering on the BCG Waveform. - Mikko Koivuluoma; Laurentiu Barna; Teemu Koivistoinen; Tiit Kööbi; Alpo Värri (BIOSIGNALS (2), 2008)