1. Bannasch, P., and W. Thoenes, 1965: Zum Problem der nucleolären Stoffabgabe. Elektronenmikroskopisclie Untersuchungen am Pankreas der weißen Maus. Z. Zellforsch. 67, 674–692.
2. Cameron, I. L., and G. E. Ernest, Jr., 1965: Nucleolar and biochemical changes during unbalanced growth of Tetrahymena pyrifdrmis. J. Cell Biol. 26, 845–856.
3. Jones, K. W., and T. R. Elsdale, 1964: The effects of actinomycin D on the ultra-structure of the nucleolus of the amphibian embryonic cell. J. Cell Biol. 21, 245–252.
4. Magrot, T., F. Fakan, and O. Bednak, 1964: Beobachtung der Extrusion der Nucleolarsubstanz. Naturwissenschaften 51, 465.
5. Stenram, U., 1965: Electron-microscopic study on liver cells of rats treated with actinomycin D. Z. Zellforsch. 65, 211–219.