Multi-grid simulation of pedestrian counter flow with topological interaction
Ma Jian(马剑), Song Wei-Guo(宋卫国), and Liao Guang-Xuan(廖光煊)
Chin. Phys. B . 2010, (12): 128901 -128901 .  DOI: 10.1088/1674-1056/19/12/128901