Hajmohammadi, H;    Marra, G;    Heydecker, B;      (2019)    Data-driven models for microscopic vehicle emissions.                   Transportation Research Part D: Transport and Environment , 76    pp. 138-154.    10.1016/j.trd.2019.09.013 <https://doi.org/10.1016/j.trd.2019.09.013>.       Green open access