1. Bridges, C. B. & Brehme, K. S. (1944). The mutants ofDrosophila melanogaster. Publ. Carneg. Instn, no. 552.
2. Ephrussi, B. &Herold, J. L. (1944). Studies of eye pigments ofDrosophila melanogaster. I. Methods of extraction and quantitative estimation of the pigment components.Genetics,29, 148–75.
3. Mainx, F. (1938). Analyse der Genwirkung durch Faktorenkombination. Versuche mit den Augenfarbenfaktoren vonDrosophila melanogaster.Z. indukt. Abstamm.- u. VererbLehre,75, 256–76.
4. Nolte, D. J. (1944). White ofyw, an interaction-product.DIS-18, 54.
5. Nolte, D. J. (1948). A graded series of eye colors due to interaction of genes.DIS-22, 74–5.