Marco Veloso, Santi Phithakkitnukoon, Carlos Bento. Exploring relationship between taxi volume and flue gases' concentrations. In Friedemann Mattern, Silvia Santini, John F. Canny, Marc Langheinrich, Jun Rekimoto, editors, The 2013 ACM International Joint Conference on Pervasive and Ubiquitous Computing, UbiComp '13, Zurich, Switzerland, September 8-12, 2013 - Adjunct Publication. pages 1229-1238, ACM, 2013. [doi]