Clausnitzer, V., J. W. Hopmans, and D. R. Nielsen. 1990. A comprehensive optimization procedure using Powell's minimization algorithm. LAWR Report No. 100017. 29 pages.

Clausnitzer, V., J. W. Hopmans, and D. R. Nielsen. 1990. A comprehensive algorithm for simultaneous scaling of soil water retention and hydraulic conductivity data. LAWR Report No. 100018. 54 pages.

Hopmans, J. W. and J. Gravenmier. 1991. Laboratory testing of Carefree Water Conditioner. LAWR Report No. 100019.

Eching, S. O. and J. W. Hopmans. 1993. Inverse solution of unsaturated soil hydraulic functions from transient outflow and soil water pressure data. LAWR Report 100021.

Clausnitzer, V. and Hopmans, J. W. 1993. An algorithm for three-dimensional simultaneous modeling of root growth and transient soil water flow. LAWR Report 100022.

Clausnitzer, V., and J. W. Hopmans. 1995. Nonlinear Parameter estimation. LM-OPT. General purpose optimization code based on the Levenberg-Marquardt algorithm. LAWR Report 100032.

Somma, F., V. Clausnitzer and J. W. Hopmans. 1995. An algorithm for three-dimensional, simultaneous modeling of root growth, trasnient soil water flow, and solute transport and uptake. LAWR Report 100031.

Somma, F., V. Clausnitzer and J.W. Hopmans. 1997. An algorithm for three-dimensional, simultaneous modeling of root growth, transient soil water flow, and solute transport and uptake. Version 2.1. LAWR Report 100034.

Chen, J., K. Kosugi and J.W. Hopmans. 1997. Parameter estimation of mulit-step outflow experiments: SFOPT. LAWR Report 100036.

Frueh, W.T. and J.W. Hopmans. 1997. Multiplexing system operation for TDR equipment. LAWR Report 100035.

Tuli, A., M.A. Denton, J.W. Hopmans, T. Harter and J.L. MacIntyre. 2001. Multi-step outflow experiment: from soil preparation to parameter estimation. LAWR Report No. 100037. 109 pages.