1. X-ray Microanalysis in Biology and Medicine;Engstrom,1962
2. Contact microradiography: A general survey;Engstrom,1957
3. Contact microradiography of human epidermis;Tosti;Arch. Derm,1964
4. U.V., X-ray and Alpha-particles Micrography of the Skin;Tosti,1968
5. Ultraviolet absorption techniques;Walter,1956