%0 Journal Article %A D. T. Walters %A D. A. Mortensen %A C. A. Francis %A R. W. Elmore %A J. W. King %T Specificity %B The context of research for sustainability %D 1990 %J Journal of Soil and Water Conservation %P 55-57 %V 45 %N 1 %U https://www.jswconline.org/content/jswc/45/1/55.full.pdf