Multiple objective optimal control of integrated urban wastewater systems. Fu, G., Butler, D., & Khu, S. Environmental Modelling & Software, 23(2):225--234, February, 2008.
bibtex   
@article{Fu08,
   author = {Guangtao Fu and David Butler and Soon-Thiam Khu},
   title = {Multiple objective optimal control of integrated urban wastewater systems},
   journal = {Environmental Modelling \& Software},
   volume = {23},
   number = {2},
   pages = {225--234},
   month = {February},
   year = {2008}
}

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