Kmetz, Konrad. "Soybean seed decay : studies on disease cycles, effects of cultural practices on disease severity and differentiation of the pathogens Phomopsis sp., Diaporthe phaseolorum var. sojae and D. phaseolorum var. caulivora /." Doctoral dissertation, Ohio State University, 1975. http://rave.ohiolink.edu/etdc/view?acc_num=osu1486995751182318Chicago Manual of Style (17th edition)