1. Adams, G. C. 1988, Thanatephorus cucumeris (Rhizoctonia solani), a species complex of wide host range, in: Advances in Plant Pathology, Vol.6, D. S. Ingram and P.H. Williams, eds., Academic Press, London, pp. 535–552.
2. Alconero, R. 1969, Mycorrhizal synthesis and pathology of Rhizoctonia solani in vanilla orchid roots, Phytopathol. 59: 426–430.
3. Alexander, C. and Hadley, G. 1985, Phosphorus uptake by mycorrhizas of the orchid Goodyera repens. in: Proceedings of the 6’h
North American Conference on Mycorrhizae, R. Molina, ed., Forest Research Laboratory, USA.
4. Arditti, J. 1967, Factors affecting the germination of orchid seeds, Bot. Rev. 33: 1–97.
5. Arditti, J. 1979, Aspects of physiology of orchids, Adv. Bot. Res. 7: 421–655.