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Lentz, R.D. and Westermann, D.T. and Kincaid, D.C. and Koehn, A.C. (2001) Deep percolation and preferential flow under conventionally and PAM-treated irrigation furrows. pp. 157-160. In: Bosch, D. and al, et (eds.) Proc. 2nd Int. Symp. Preferential flow: Water movement and chemical transport in the environment. USA-HI-Honolulu, 2001/01/03-05. ASAE, St. Joseph, MI.
Lentz, Rodrick D. and Sojka, Robert E. and Kincaid, Dennis C. (1998) Design and calibration of percolation samplers for measuring polyacrylamide-amended furrow-irrigation effects on drainage water quality. pp. 267-276. In: Proc. of the Seventh International Drainage Symposium. Drainage in the 21st Century: Food Production and the Environment. USA-FL-Orlando, 1998/03/08-10. ASAE, St. Joseph, MI.