@ARTICLE {HUGHES:1998a, title = {Diagnosis of yam viruses}, author = {Hughes, J. and Dongo, L. and Ng, S. Y. C. }, journal = {Tropical Agriculture}, year = {1998}, volume = {75}, number = {1}, pages = {45--48}, issn = {0041-3216}, note = {RTB; Root and Tuber; Yam}, }