Dirk Helbing. A Fluid-Dynamic Model for the Movement of Pedestrians. Complex Systems, 6(5), 1992. [doi]
@article{Helbing92, title = {A Fluid-Dynamic Model for the Movement of Pedestrians}, author = {Dirk Helbing}, year = {1992}, url = {http://www.complex-systems.com/abstracts/v06_i05_a01.html}, researchr = {https://researchr.org/publication/Helbing92}, cites = {0}, citedby = {0}, journal = {Complex Systems}, volume = {6}, number = {5}, }