The walking behavior of pedestrian crowd under impact of static and movable targets Ning Guo, Jian-Xun Ding, Xiang Ling, Qin Shi and Imamura Takashi Eur. Phys. J. B, 86 7 (2013) 310 Published online: 08 July 2013 DOI: 10.1140/epjb/e2013-30531-8