Andrew A. J. J., Ardell L., eds. Basic and clinical neurocardiology. N. Y.: Harper Edge, 1997. P. 119–124.
135
McCraty R. et al. The electricity of touch: detection and measurement of cardiac energy exchange between people, in Pribram K. ed. Brain and values: is a biological science of values possible? Mahwah, NJ: Lawrence Erlbaum associates, 1998. P. 359–379.