@inproceedings{Biedl2000,
 author={Therese C. Biedl and  Brona Brejova and  and Tomas Vinar},
 title={{Simplifying flow networks}},
 editor={M. Nielsen and  B. Rovan},
 booktitle={Mathematical Foundations of Computer Science 2000 (MFCS)},
 volume={1893},
 series={Lecture Notes in Computer Science},
 pages={192--201},
 address={Bratislava},
 month={August},
 year={2000},
 publisher={Springer}
}