@TechReport{CEPII:2004-08,
author={Souleymane Coulibaly and Lionel Fontagné},
title={South – South Trade: Geography Matters},
year=2004,
month=July,
institution={CEPII},
type={Working Papers},
url={http://www.cepii.fr/CEPII/fr/publications/wp/abstract.asp?NoDoc=190},
number={2004-08},
}