@incollection{Martins17,
author = {Vânia Martins and María Cruz Minguillón and Teresa Moreno and Luís Mendes and 
Konstantinos Eleftheriadis and Célia A. Alves and Eladio de Miguel and
Xavier Querol},
title = {Characterisation of Airborne Particulate Matter in Different European Subway Systems},
booktitle = {Urban Transport Systems},
publisher = {IntechOpen},
address = {Rijeka},
year = {2017},
editor = {Hamid Yaghoubi},
chapter = {5},
doi = {10.5772/65364},
url = {https://doi.org/10.5772/65364}
}