@ARTICLE {PEVELING:1999, title = {An assessment of the impact of biological and chemical grasshopper control agents on ground-dwelling arthropods in Niger, based on presence/absence sampling}, author = {Peveling, R. and Attignon, S. and Langewald, J. and Ouambama, Z. }, journal = {Crop Protection}, year = {1999}, volume = {18}, number = {5}, pages = {323--339}, issn = {0261-2194}, }