@article{Tittonell_2013,
title={When yield gaps are poverty traps: The paradigm of ecological intensification in African smallholder agriculture},
volume={143},
ISSN={0378-4290},
url={http://dx.doi.org/10.1016/j.fcr.2012.10.007},
DOI={10.1016/j.fcr.2012.10.007},
journal={Field Crops Research},
publisher={Elsevier BV},
author={Tittonell,
Pablo and Giller,
Ken E.},
year={2013},
month=mar,
pages={76–90} }