@article{ChristlFreundHennebergeretal.1988,
  author    = {Manfred Christl and S. Freund and H. Henneberger and A. Kraft and J. Hauck and H. Irngartinger},
  title     = {Several Polycyclic Valence Isomers of Dimethyl [14]Annulene-1,8-dicarboxylate. Reactivity of a "Nonconjugated" Bis(bicyclo[1.1.0]butane)},
  year      = {1988},
}