Numerical modelling of overtaking collisions of dust acoustic waves in plasmasDong-Ning Gao, Heng Zhang, Jie Zhang, Zhong-Zheng Li and Wen-Shan DuanEur. Phys. J. D, 70 11 (2016) 235DOI: https://doi.org/10.1140/epjd/e2016-70326-y