@article{SteglichMueller2004,
  author    = {Rosmarie Steglich and Joachim M{\"u}ller},
  title     = {Aeshna viridis (Eversmann, 1836) : Gr{\"u}ne Mosaikjungfer},
  journal   = {Naturschutz im Land Sachsen-Anhalt},
  volume    = {41},
  number    = {Sonderheft},
  pages     = {23 -- 30},
  year      = {2004},
}