@Article{NikBieFarLap_ProbabilisticSpeedDensity,
author = {Marija Nikolic and Michel Bierlaire and Bilal Farooq and Matthieu de Lapparent },
title = {Probabilistic speed-density relationship for pedestrian traffic},
journal = {Transportation Research Part B: Methodological},
volume = {89},
pages = {58-81},
doi = {10.1016/j.trb.2016.04.002},
year = {2016}
}