@article{Enell_2011, title={The Hotel Payload 2 campaign: Overview of NO, O and electron density measurements in the upper mesosphere and lower thermosphere}, volume={73}, ISSN={1364-6826}, url={http://dx.doi.org/10.1016/j.jastp.2011.01.001}, DOI={10.1016/j.jastp.2011.01.001}, number={14–15}, journal={Journal of Atmospheric and Solar-Terrestrial Physics}, publisher={Elsevier BV}, author={Enell, Carl-Fredrik and Hedin, Jonas and Stegman, Jacek and Witt, Georg and Friedrich, Martin and Singer, Werner and Baumgarten, Gerd and Kaifler, Bernd and Hoppe, Ulf-Peter and Gustavsson, Björn and Brändström, Urban and Khaplanov, Mikhail and Kero, Antti and Ulich, Thomas and Turunen, Esa}, year={2011}, month=sep, pages={2228–2236} }