@article{ChristlBrunn1981,
  author    = {Manfred Christl and E. Brunn},
  title     = {Tetracyclo[4.1.0.0\(^{2,4}\).0\(^{3,5}\)]heptane aus 7,8-Diazatetracyclo[4.3.0.0\(^{2,4}\).0\(^{3,5}\)]non-7-enen},
  year      = {1981},
}