1. Babkin, B. P.: Secretory mechanism of the digestiv glands. New York: Hoeber 1950.
2. Burgen, A. S. V., Emmelin, N. G.: Physiology of the salivary glands. London: Arnold 1961.
3. Emmelin, N.: On spontaneus secretion of saliva. Acta physiol. scand. 30, Suppl. 111, 34?58 (1953).
4. Hall, H. D., Schneyer, D. A.: Salivary gland atrophy in rat induced by liquid diet. Proc. Soc. exp. Biol. (N.Y.) 117, 789?793 (1964).
5. Holtest, J. C. L.: A cytochemical and cytomorphical investigation of serous salivary glands with special reference to the contents of cytoplasmic basophilic substance in the seous cells. Aarhus: Univ. Forl. 1962.