@article{WeberZetscheRybergetal.2005,
  author    = {Michael H. Weber and F. Zetsche and Trond Ryberg and A. Schulze and Erik Spangenberg and Ernst Huenges},
  title     = {Seismic detection limits of small, deep, man-made reflectors : a test at a geothermal site in northern Germany},
  year      = {2005},
}