1. Systematic identification of DOBOD model structure;Beck;Environ. Eng. Am. Soc. Civ. Eng.,1976
2. Coupled optimization-simulation water quality model;Bishop;J. Environ. Eng. Div. Am. Soc. Civ. Eng.,1977
3. Bowles , D. S. M. B. Beck Simultaneous state and parameter estimation for river water quality 1979
4. Steady state river quality modeling by sequential extended Kalman filters;Bowles;Water Resour. Res.,1978
5. Bowles , D. S. W. J. Grenney Estimation of diffuse loading of water quality pollutants by Kalman filtering 1978