1. Regional water quality impacts of intensive row-crop agriculture: A Lake Erie basin case study;Baker;J. Soil and Water Conserv,1985
2. Beasley , D. B. E. J. Monke L. F. Huggins 1977 The ANSWERS model: a planning look for watershed research
3. Macropores and water flow in soils;Bevin;Water Resour. Res.,1982