1. – Folk, J.F.: Simulation Models of Railroad operations: a Review of Major Efforts; in Modeling and Simulation, vol. 4, Proceedings of the Fourth Annual Pittsburgh Conference, April 1973, Instrument Society of America.
2. – Capocaccia, F., Dallorto, N., Naso, P.G., Negro, A.: Un metodo per la determinazione della potenzia– lita di una linea ferroviaria; XXXV Riunione Annua– le AEI, Sorrento, Settembre 1976.
3. – Coates, P.J., Clark, P.W.: A simulation method applicable to railway operation; Proceeding of the II International Symposium on the use of Cybernetics on the Railways, Montreal, October 1967.
4. – STewart, M. : Computer simulation aids train service planning. Railway Gazete International; January 1974.
5. – Bergman, D.R.: Generalized expression for the minimum time interval between consecutive arrivals at an idealized railway station; in Transportation Research, vol. 6, 1972, pp. 327-341.