1. Beakes, G. W., 1981: Ultrastructural aspects of oospore differentiation. In: The Fungal Spore, Morphogenetic Controls (Turian, G., Hohl, H. R., eds.), pp. 71?128. London-New York: Academic Press.
2. Bonfante-Fasolo, P., 1982: Cell wall architectures in a mycorrhizal association as revealed by cryoultramicrotomy. Protoplasma111, 113?120.
3. Burnett, J. H., 1979: Aspects of the structure and growth of hyphal walls. In: Fungal Walls and Hyphal Growth (Burnett, J. H.,Trinci, A. P. J., eds., pp. 1?26. Cambridge University Press.
4. Daniels, B. A., Trappe, J. M., 1979:Glomus epigaeus sp. nov., a useful fungus for vesicular-arbuscular mycorrhizal research. Can. J. Bot.57, 539?542.
5. Emons, A. M. C., 1982: Microtubules do not control microfibril orientation in a helicoidal cell wall. Protoplasma113, 85?87.