1. Dynamic programing for the optimal sequencing of water supply projects;Butcher;Water Resour. Res.,1969
2. Clyde , C. W. N. Blood Optimum operation of desalting plants as a supplemental source of safe yield, Water Res. Lab. Rep. PRWG 61-2 Utah State Univ. Logan 1969
3. English , J. M. N. E1-Ramly Economic evaluation of desalting sub-system as a part of the total water system 1970