1. Beckett, A., 1981: The ultrastructure and behaviour of nuclei and associated structures within the meiotic cells of Euascomycetes. In: The fungal nucleus: structure, biochemistry and genetics (Gull, K., Oliver, S. G., eds.). (In Press.) London: Cambridge University Press.
2. ?,Heath, I. B., McLaughlin, D. J., 1974: An atlas of fungal ultrastructure, 221 p. London-New York: Longman.
3. Bell, W. R., Therrien, C. D., 1977: A cytophotometric investigation of the relationship of DNA and RNA synthesis to ascus development inSordaria fimicola. Can. J. genet. Cytol.19, 359?370.
4. Bracker, C. E., 1967: Ultrastructure of fungi. Ann. Rev. Phytopath.5, 343?374.
5. Cabib, E., 1975: Molecular aspects of yeast morphogenesis. Ann. Rev. Microbiol.29, 191?214.