1. A statistical analysis of speed density hypotheses;Drake;Highw. Res. Record,1967
2. Principles and Techniques of Applied Mathematics;Friedman,1954
3. Density oscillations between lanes of a multilane highway;Gazis;Ops. Res.,1962
4. Vehicular trajectories semiautomatic aerial photographic data reduction system user's manual;Goodwin;System Development Corp. Document,1970
5. On kinematic waves II, a theory of traffic flow on long crowded roads;Lighthill;Proc. Roy. Soc., London,1955