@ARTICLE {HAHN:1981a, title = {Resistance of sweet potato viruses (SPVD)}, author = {Hahn, S. K. and Terry, E. R. and Leuschner, K. }, journal = {Horticultural Science}, year = {1981}, volume = {16}, number = {4}, pages = {535--537}, issn = {0862-867X}, note = {RTB; Root and Tuber; Sweetpotato}, }