1. Salzborn, F.J.M, Buckley, D J.: Minimum fleet size models for transportation systems. In: Buckley, D.J., (Ed.), Proceedings of the 6th International Symposium on Transportation & Traffic Theory (ISTTT6), pp. 607–624. Elsevier, Sydney (1974)
2. Proll, L.G.: Letter to the editor—a note on the minimum fleetsize for a suburban railway system. Transp. Sci. 6(2), 204–207 (1972)
3. Koo, P.H., Jang, D.W., Lee, W.S.: Fleet sizing and vehicle routing for static freight container transportation. IE Interfaces 16(2), 174–184 (2003)
4. Koo, P.H., Lee, W.S., Jang, D.W.: Fleet sizing and vehicle routing for container transportation in a static environment. OR Spectr. 26(2), 193–209 (2004)
5. Vis, I.F.A., René (M.)B.M., de Koster, M.W.P.: Savelsbergh minimum vehicle fleet size under time-window constraints at a container terminal. Transp. Sci. 39(2), 249–260 (2005)