BibTex format
@article{Su:2014:10.1016/j.powtec.2013.12.009,
author = {Su, J and Gu, Z and Zhang, M and Xu, XY},
doi = {10.1016/j.powtec.2013.12.009},
journal = {POWDER TECHNOLOGY},
pages = {393--405},
title = {An improved version of RIGID for discrete element simulation of particle flows with arbitrarily complex geometries},
url = {http://dx.doi.org/10.1016/j.powtec.2013.12.009},
volume = {253},
year = {2014}
}