1. Mauro, R., Calculation of Roundabouts - Capacity, Waiting Phenomena and Reliability, Springer-Verlag, Berlin-Heidelberg, 2010
2. Roess, R.P., Prassas, E.S., McShane, W.R., Traffic Engineering, 4th Edition, Pearson/Prentice-Hall, Upper Saddle River, N.J., 2011
3. Wald, A., Sequential Analysis, J.Wiley & Sons, New York, 1947
4. Kendall, M.G., Stuart, A., The Advanced Theory of Statistics, Vol. 2, 2nd Edition, C. Griffin, London, 1967
5. Cox, D.R., Lewis, P.A., The Statistical Analysis of Series of Events, J.Wiley & Sons, New York, 1966