Multichannel ECG and Noise Modeling: Application to Maternal and Fetal ECG Signals - Sameni, R; Clifford, GD; Jutten, C; Shamsollahi, MB
EURASIP Journal on Advances in Signal Processing, vol. 2007. (Research Article ID 43407, pp 1-14, , doi: 10.1155/2007/43407).