Biblio
] , “The choice of tillage, rotation, and soil testing practices: Economic and environmental implications”, American Journal of Agricultural Economics, vol. 80, pp. 494–511, 1998.
, “Contract design for the purchase of environmental goods from agriculture”, American journal of agricultural economics, vol. 78, pp. 935–945, 1996.
, “The impact of policies and land characteristics on potential groundwater pollution in Wisconsin”, American Journal of Agricultural Economics, vol. 77, pp. 1033–1047, 1995.