A decision support system for train dispatching : an optimization-based methodology / Dejan Jovanovic, Patrick T. Harker.
- Philadelphia, Pa. : Dept. of Decision Sciences, Wharton School, University of Pennsylvania, 
23 leaves : ill. ; 28 cm.
- Wharton School. Dept. of Decision Sciences (Series) ; 90-04-02.
Dept. of Decision Sciences, Wharton School, University of Pennsylvania ; 90-04-02.