T. Grajek, R. Ratajczak, M. Domański, K. Wegner, “Limitations of Vehicle Length Estimation Using Stereoscopic Video Analysis”, 20th International Conference on Systems, Signals and Image Processing, IWSSIP 2013, Bucharest, Romania, 7-9 July 2013, pp. 27-30, ISBN: 978-1-4799-0941-4,