@ARTICLE {KRISTJANSON:2005,
title = {Farmers' perceptions of benefits and factors affecting the adoption of improved dual-purpose cowpea in the dry savannas of Nigeria},
author = {Kristjanson, P. and Okike, I. and Tarawali, S. and Singh, B. and Manyong, V. },
journal = {Agricultural Economics},
year = {2005},
volume = {32},
number = {2},
pages = {195--210},
}