1. A Policy on Geometric Design of Highways and Streets, American Association of State Highway Officials;AASHTO,1984
2. APPOLLON: A new road design optimization procedure;Antoniotti,1969
3. Applied Dynamic Programming;Bellman,1962
4. Control parametrization: A unified approach to optimal control problems with general constraints;Goh;Automatica,1988
5. A variational approach to optimal route location;Nicholson;Highway Engineer,1976