1. Axhausen. K.W., Smith R.L.,(1984). Evaluation of heuristic transit network optimization algorithms. Transportation Research Record 976, pp.7–20.
2. Baaj M.H. and Mahmassani H.S. (1995). Hybrid route generation heuristic algorithm for the design of transit networks. Transportation Research C 3C, 31–50.
3. Carrese S., Cipriani E., Gori S. (1997). Urban Transit Service for Elderly Persons. International Symposium on Urban Areas and an Aging Population. INRETS Arles en Provence, France. October 8–10.
4. Carrese S., Fusco G., Gori S. (1998a). Timed Transfer Systems Strategies in Low Demand Areas. Proceedings of the 8th World Conference on Transport Research. Antwerp Belgium July 12–17.
5. Carrese S., Gori S. (1998b). Bus Network Design and Parking Policies Interactions. Proceedings of the TRISTAN III Conference Puerto Rico June 17–23, Volume II.