@Article{acpd-8-10697-2008,
AUTHOR = {Vestreng, V. and Ntziachristos, L. and Semb, A. and Reis, S. and Isaksen, I. S. A. and Tarras\'on, L.},
TITLE = {Evolution of NO$_{x}$ emissions in Europe with focus on road transport control measures},
JOURNAL = {Atmospheric Chemistry and Physics Discussions},
VOLUME = {8},
YEAR = {2008},
NUMBER = {3},
PAGES = {10697--10747},
URL = {http://www.atmos-chem-phys-discuss.net/8/10697/2008/},
DOI = {10.5194/acpd-8-10697-2008}
}