How Individuals Learn to Take Turns: Emergence of Alternating Cooperation in a Congestion Game and the Prisoner's Dilemma. - Dirk Helbing; Martin Schönhof; Hans-Ulrich Stark; Janusz A. Holyst (Adv. Complex Syst., 2005)

Empirical Features of Congested Traffic States and Their Implications for Traffic Modeling. - Martin Schönhof; Dirk Helbing (Transp. Sci., 2007)