1. Becker, W. S.: Microscopic analysis of normal melanoblasts, nevus cells, and melanoma cells. In Pigment Cell Growth, pp. 109–119. New York: Academic Press 1953.
2. Burk, D., G. H. Algire, M. L. Hesselbach, C. E. Fischer, and F. L. Legallais: Characterization of tissue metabolism of transplanted mouse melanomas by high oxidative response to paraphenylenediamine. J. Nat. Cancer Inst. 7, 425–429 (1947).
3. Burk, D., G. H. Algire, M. L. Hesselbach, C. E. Fischer, and F. L. Legallais: Tissue metabolism of transplanted mouse melanomas, with special reference to characterization by paraphenylenediamine. In: The Biology of Melanomas. Spec. Publ. N.Y. Acad. Sci. 4, 437 (1948).
4. Clark, R. L., and E. J. Macdonald: The natural history of melanoma in man. In: Pigment Cell Growth, pp. 139–148. New York: Academic Press 1953.
5. Greenstein, J. P.: Enzymes in normal and neoplastic animal tissues. In: A.A.A.S. Research Conference on Cancer, pp. 192–222 (1944).