@article{Traag2017a, author = {V. A. Traag and R. Quax and P. M. A. Sloot}, doi = {10.1016/j.physa.2016.10.054}, issn = {0378-4371}, journal = {Physica A : Statistical Mechanics and its Applications}, pages = {171-182}, title = {Modelling the distance impedance of protest attendance}, volume = {468}, year = {2017} }