@article{SINNHUBER11_GRL,
   author = "B.-M. Sinnhuber and G. Stiller and R. Ruhnke and T. von Clarmann
             and S. Kellmann and J. Aschmann",
   title  = "Arctic winter 2010/2011 at the brink of an ozone hole",
   journal= "Geophys. Res. Lett.",
   volume = "38",
   eid    = "L24814",
   doi    = "10.1029/2011GL049784",
   year   = "2011"   }