1. Arisi G, Macchi E, Baruffi S, Spaggiari S, Taccardi B: Potential fields on the ventricular surface of the exposed dog heart during normal excitation. Circ Res 1983;52:706–715.
2. Barr RC, Spach MS: Construction and interpretation of body surface maps. Prog Cardiovasc Dis 1983;26:33–42.
3. Yamada K, Toyama J, Sugenoya J, Wada M, Sugiyama S: Body surface isopotential maps. Clinical application to the diagnosis of myocardial infarction. Jpn Heart J 1978;19:28–45.
4. Barr RC, Spach MS, Herman-Giddens GS: Selection of the number and positions of measuring locations for electrocardiography. IEEE Trans Biomed Eng 1971;18:125–138.
5. Spach MS, Barr RC: Physiological correlates and clinical application of isopotential surface maps. In: Hoffman I, Hamby RI and Glassman E, eds. Vectorcardiography 2. Amsterdam: North Holland Publishing. 1971:131–141.