@ARTICLE {AJUONU:2003a, title = {Release, establishment, spread, and impact of the weevil Neohydronomus affinis (Coleoptera: Curculionidae) on water lettuce (Pistia stratiotes) in B{\'e}nin, West Africa}, author = {Ajuonu, O. and Neuenschwander, P. }, journal = {African Entomology}, year = {2003}, volume = {11}, pages = {205--212}, no, }