1. Mellanby, K.: Scabies. Oxford University Press, 1943 , pp. 9, 15.
2. Anderson, T. McCall: A Treatise on Diseases of the Skin. London, 1894, p. 616.
3. Parasitology of Scabies
4. Hebra, F.: On Diseases of the Skin, Vol. II. Translated by C. H. Fagge and P. H. Pye-smith, New Sydenham Society, London, 1868, pp. 164-252.