Oglevee, W. A. (1977). The use of chemotherapy in meristem-tip culture to eliminate potato spindle tuber viroid from potatoes.   M.S. thesis:

Omielan, J. A. (1986). Ozone effects on photosynthesis and viability of isolated soybean mesophyll cells.   M.S. thesis:

Onyike, N. B. N. (1989). The distruction, toxigenicity, and evaluation of fusarium species on millet and sorghum seed from Nigeria, Lesotho, and Zimbabwe.   Ph.D. thesis:

Ospina-Giraldo, M. D. (1998). Molecular phylogenetic analyses of Trichoderma SPP. associated with mushroom green mold and their relationships with biological control agents.   Ph.D. thesis:

Overton, B. E. (2004). Systematics of Hypocrea with effused stromata and anamorphs in Trichoderma section Hypocreanum.   Ph.D. thesis: