- A Heuristic Model for Toll Personnel Scheduling,
S. Lambropoulos, N. Manolopoulos and D. Cattrysse
Paper 7.1 from CCP: 15, ISBN 0-948749-17-2 (1993)
- Toll Booth Management via Simulation,
E. Kopanezou, S. Lambropoulos and N. Manolopoulos
Paper 19.1 from CCP: 9/10, ISBN 0-948749-10-5 (1989)