@ARTICLE {SMITH:1997,
title = {Integrated crop-livestock systems in sub-Saharan Africa: an option or imperative?},
author = {Smith, J. and Naazie, A. and Larbi, A. and Agyemang, K. and Tarawali, S. },
journal = {Outlook on Agriculture},
year = {1997},
volume = {26},
pages = {237--246},
}