Magnetic measurements of cardiac mechanical activity. - Roman Maniewski; Toivo Katila; Torsti Poutanen; Penitti Siltanen; Timo Varpula; John P. Wikswo Jr. (IEEE Trans. Biomed. Eng., 1988)

Magnetocardiographic functional localization using current multipole models. - Jukka Nenonen; Toivo Katila; Matto Leinio; Juha Montonen; Markku Mäkijärvi; Penitti Siltanen (IEEE Trans. Biomed. Eng., 1991)