M. Reichmanis, A. Andrew, R.O. Becker RO, Electrical correlates of acupuncture points, IEEE Trans Biomed Eng, 1975, 22:533-235.
 J.J. Tsuei, The science of acupuncture , IEEE Engineering in medicine and biology, May-June 1996 52-57
 K.G. Chen, Electrical properties of meridians, IEEE Engineering in medicine and biology, 15(3)1996, 58-63
 G. D. Mc Carrol, B. A. Rowley, An Investigation of the Existence of Electrically Located Acupuncture Points, IEEE Transactions on Biomedical Engineering,Vol.BME-26, NO. 3, March 1979
 H. Heine, Manuale di Medicina Biologica, 207-215, Guna Editore, 1999, Milano
 Z. X. Zhu, Research advances in the electrical specificity of meridians and acupuncture points”, Am J Acupunct, (9)1981, pp. 203- 216.
 K.G. Chen, Biological Implication of Electrical Properties of Acupuncture Meridians, Proceedings of the 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Vol. 20, No 2,1998, 1086-1087.
 E. F. Prokhorov, J. G. Hernandez, Y. V. Vorobiev,E. M. Sinchez, T. E. Prokhorova, G. Zaldivar, Electrophysical Characterization of Biologically Active Points and Human Skin by in Vivo Impedance Measurement, Proceedings of the 22"d Annual EMBS International Conference, July 23-28,2000, Chicago IL.
 W.A. Lu, J.J. Tsuei, K.G. Chen, Preferential direction and symmetry of electric conduction of human meridians, IEEE Eng. Med. Biol. Mag., 1999 vol. 18, p. 76.
 R. Eickhorn, H.Schimmel, Electrophysiological diagnosis at terminal poits of acupuncture meridians, Biomedical Therapy, vol XVII, 1999 n.3.
 M. O’Donnell, Biomedical Instrumentation & Design, BME/EECS 458, Chapter 3, Medical Instrumentation Application and Design (3rd Edition) John G. Webster Editor