Correlation between measured surface and endocardial electrical signals of heartHinrikus, Hiie; Kaik, Jüri; Meigas, Kalju; Lass, JaanusProceedings of the 2nd International Conference on Bioelectromagnetism, 15-18 February 1998, Melbourne, Australia1998 / p. 127-128: ill https://ieeexplore.ieee.org/document/666428