First Name: RobertLast Name: WillisPublications: YearPublication 1975"Steady-State Water Quality Modeling in Streams" in Journal of the Environmental Engineering Division 1976"Optimal groundwater quality management: Well injection of waste waters" in Water Resources Research 1976"Optimal Management of the Subsurface Environment" in Hydrological Sciences Bulletin 1976"Transient Water Quality Modeling in Streams" in Journal of the American Water Resources Association 1976"Water Quality Modeling of Deep Reservoirs" Journal of the Water Pollution Control Federation 1977"Management Model for Ground-Water Development" in Journal of the Water Resources Planning and Management Division 1979"A planning model for the management of groundwater quality" in Water Resources Research 1979"Identification of aquifer dispersivities in two-dimensional transient groundwater Contaminant transport: An optimization approach" in Water Resources Research 1984"A Unified Approach to Regional Groundwater Management" in Groundwater Hydraulics 1984"An Explicit Finite Difference Model for Unconfined Aquifers" in Groundwater 1984"Optimization Model for Ground‐Water Planning" in Journal of Water Resources Planning and Management 1984"Monte Carlo Optimization for Reservoir Operation" in Water Resources Research 1985"Optimal Control of Nonlinear Groundwater Hydraulics: Theoretical Development and Numerical Experiments" in Water Resources Research 1987"Water Resources Systems Planning: Some Case Studies for India" in Eos 1987"Optimal control of nonlinear groundwater hydraulics using differential dynamic programming" in Water Resources Research 1987Groundwater Systems Planning and Management 1987"Optimization of Unconfined Groundwater Systems: A Differential Dynamic Programming Algorithm" in Journal of the Geological Society of India 1988"Planning Model for Optimal Control of Saltwater Intrusion" in Journal of Water Resources Planning and Management 1989"Water Resources Management in North China Plain" in Journal of Water Resources Planning and Management 1989"Stochastic analysis of estuarine hydraulics. I: One dimensional steady flow" in Stochastic Hydrology and Hydraulics 1992"Conjunctive-Use Planning in Mad River Basin, California" in Journal of Water Resources Planning and Management 1992"Quasi-Three-Dimensional Optimization Model of Jakarta Basin" in Journal of Water Resources Planning and Management 1996"Disaggregation Modeling Process for Climatic Time Series" in Journal of Water Resources Planning and Management 2004Environmental Systems Engineering and Economics 2012"A Multi-Objective, Linked-Simulation-Optimization of Henry’s Saltwater Intrusion Problem using HST3D and Box’s Method" in American Journal of Undergraduate Research 2013"Optimization Models for the Control of Saltwater Intrusion" in Journal of Mathematical and Fundamental Sciences