@article{FRIEDERICH14_ACP_NO2,
    author = "F. Friederich and M. Sinnhuber and B. Funke and T. von Clarmann
              and J. Orphal",
    title  = "Local impact of solar variation on {NO}$_2$ in the lower
              mesosphere and upper stratosphere from 2007-2012",
    journal= "Atmos. Chem. Phys.",
    volume = "14",
    number = "8",
    pages  = "4055-4064",
    doi    = "10.5194/acp-14-4055-2014",
    year   = "2014"