1. Besio, W., C. C. Lu, and P. P. Tarjan. A feasibility study for body surface cardiac propagation maps of humans from Laplacian moments of activation. Electromagnetics 21:621–632, 2001.
2. Fattorusso, V., and J. Tilmant. Exploration du champ electrique precordial a l’aide de deux electrodes circulaires, concentriques et rapprochees. Arch. Mal du Coeur. 42:452–455, 1949.
3. He, B., and D. Wu. Laplacian electrocardiography. Crit. Rev. BME 27(3–5):285–338, 1999.
4. He, B., and R. J. Cohen. Body surface Laplacian ECG mapping. IEEE Trans. BME 39(11):1179–1191, 1992.
5. He, B., and R. J. Cohen. Body surface Laplacian mapping in man. IEEE EMBS 13(2):784–786, 1991.