@article{Wunch_2007, title={Simultaneous ground-based observations of O<sub>3</sub>, HCl, N<sub>2</sub>O, and CH<sub>4</sub> over Toronto, Canada by three Fourier transform spectrometers with different resolutions}, volume={7}, ISSN={1680-7324}, url={http://dx.doi.org/10.5194/acp-7-1275-2007}, DOI={10.5194/acp-7-1275-2007}, number={5}, journal={Atmospheric Chemistry and Physics}, publisher={Copernicus GmbH}, author={Wunch, D. and Taylor, J. R. and Fu, D. and Bernath, P. and Drummond, J. R. and Midwinter, C. and Strong, K. and Walker, K. A.}, year={2007}, month=feb, pages={1275–1292} }