1. Armelin, H. A., Meneghini, R., Lara, F. J. S.: Patterns of ribonucleic acid synthesis in salivary glands of Rhynchosciara angelae larvae during development. Genetics 61, Suppl., 351?360 (1966)
2. Breuer, M. E., Pavan, C.: Behaviour of polytene chromosomes of Rhynchosciara angelae at different stages of larval development. Chromosoma (Berl.) 7, 371?385 (1955)
3. Bultmann, H., Clever, U.: Chromosomal control of foot pad development in Sarcophaga bullata. I. The puffing pattern. Chromosoma (Berl.) 28, 120?135 (1969)
4. Clever, U., Bultmann, H., Darrow, J. M.: The immediacy of genomic control in polytenic cells. In: Problems in biology: RNA in development (E. W. Hanly, ed.), p. 403?423. Salt Lake City: University of Utah Press 1970
5. Crouse, H. V., Keyl, G.: Extra replications in the ?DNA-Puffs? of Sciara coprophila. Chromosoma (Berl.) 25, 357?364 (1968)