Numerical modelling of overtaking collisions of dust acoustic waves in plasmas Dong-Ning Gao, Heng Zhang, Jie Zhang, Zhong-Zheng Li and Wen-Shan Duan Eur. Phys. J. D, 70 11 (2016) 235 Published online: 03 November 2016 DOI: 10.1140/epjd/e2016-70326-y