@ARTICLE {DOUTHWAITE:2002c, title = {Learning selection: a model for planning, implementing, and evaluating participatory technology development}, author = {Douthwaite, B. and Keatinge, J. and Park, J. }, journal = {Agricultural Systems}, year = {2002}, volume = {72}, number = {2}, pages = {109--131}, issn = {0308-521X}, }