@ARTICLE {MOYO:2007,
title = {Challenges and opportunities for improvement in cassava and sweetpotato seed systems in Southern Africa},
author = {Moyo, C. and Mahungu, N. and Mkumbira, J. and Benesi, I. *},
journal = {Roots},
year = {2007},
volume = {10},
number = {2},
pages = {17--20},
note = {RTB; Root and Tuber},
}