1. Bennik, A. and Connel, G.E., Purification and partial characterization of four proteins from human parotid saliva, Biochem. J., 123 (1971) 455–464.
2. Cannon, W.B., The physiological basis of thirst, Proc. R. Soc., London, Ser. B., 90 (1918) 283–301.
3. Cannon, W.B., Bodily Changes in Pain, Hunger, Fear and Rage. Appleton, New York and London, 1953, 404 pp.
4. Emmelin, N., Nervous control of salivary glands, In J.R. Brobeck, R.K. Crane, H.W. Davenport, M.I. Grossman, H.D. Janowitz, C.L. Prosser and T.H. Wilson (Eds.), Handbook of Physiology, Section 6, Vol. 2. American Physiological Society, Washington D.C., 1967, pp. 595–632.
5. Emmelin, N., On spontaneous secretion of saliva, Acta Physiol. Scand., Suppl. 111 (1953) 34–58.