EN
ES- Vânia Martins, Teresa Moreno, Luís Mendes, Konstantinos Eleftheriadis, Evangelia Diapouli, Célia A. Alves, Márcio Duarte, Eladio de Miguel, Marta Capdevila, Xavier Querol, María Cruz Minguillón (2016). Factors controlling air quality in different European subway systems. Environmental Research 146, 35-46. Open access.
