@inproceedings{iiasa4051,
       booktitle = {Proceedings of the Working Group Meeting on Modelling Noncommunicable Diseases: Methodological Issues},
           title = {On modelling and optimization of abrupt changes: Disease control processes},
            year = {1994},
             url = {https://pure.iiasa.ac.at/id/eprint/4051/},
          author = {Ermoliev, Y. M. and Oortmarssen, G. van}
}