@misc {IOPORT.70064020,
    author       = {Garcia-Bunster, Guillermo Arturo and Torres-Torriti, Miguel},
    title        = {A density-based approach for effective pedestrian counting at bus stops},
    howpublished = {SMC, 3434-3439 (2009).},
    year         = {2009},
    doi          = {10.1109/ICSMC.2009.5346178},
    identifier   = {70064020},
}