1. Beard, G. M. (1869). Neurasthenia or nervous exhaustion. Boston med. Burg. J., 3, 217
2. Cannon, W. B. (1927). The James — Lange Theory of Emotions: a critical examination and an alternative theory. Am. J. Psychol., 39, 106–24
3. Da. Costa, J. M. (1871). On irritable heart: a clinical study of a functional cardiac disorder and its consequences. Am. J. med. Sci., 61, 17–52
4. Dana, C. L. (1921). The anatomic seat of the emotions: a discussion of the James—Lange Theory. Archs Neurol. Psychiat., 6, 634–40
5. Descartes, R. (1648). Passions de l’ame, Paris. English translation—The Philosophical Works of Descartes, Vol. 1. Trans. by E. S. Haldane and G. R. T. Ross, 1911, Cambridge