@Article{amt-19-4505-2026,
AUTHOR = {Teinil\"a, K. and Lepist\"o, T. and Niemi, J. V. and Portin, H. and Julkunen, A. and Kousa, A. and Kuula, J. and Manninen, H. E. and Aalto, P. and Pet\"aj\"a, T. and R\"onkk\"o, T. and Saukko, E. and Timonen, H.},
TITLE = {Comparison of particle number concentrations measured with AQ Urban sensors in two different environments in
  Helsinki, Finland},
JOURNAL = {Atmospheric Measurement Techniques},
VOLUME = {19},
YEAR = {2026},
NUMBER = {13},
PAGES = {4505--4516},
URL = {https://amt.copernicus.org/articles/19/4505/2026/},
DOI = {10.5194/amt-19-4505-2026}
}