@article{LiperovskayaPochotelovLiperovskyetal.1994,
  author    = {E. V. Liperovskaya and O. A. Pochotelov and Viktor A. Liperovsky and M. A. Oleynik and Claudia-Veronika Meister and N. Christakis},
  title     = {A comparison of seismic and anthropogenic effects in the night-time sporadic E-layer of the ionosphere},
  year      = {1994},
}