@unpublished{LiperovskyMeisterDodaetal.2007,
  author  = {V. A. Liperovsky and Claudia-Veronika Meister and L. N. Doda and E. V. Liperovskaya and V. F. Davidov and V. V. Bogdanov},
  title   = {On the possible influence of radon and aerosol injection on the atmosphere and ionosphere before earthquakes},
  institution = {Interdisziplin{\"a}res Zentrum f{\"u}r Dynamik komplexer Systeme},
  series    = {NLD Preprints},
  number    = {64},
  year    = {2007},
}