@article{ChristlBraun1989,
  author    = {Christl, Manfred and Braun, Max},
  title     = {Photocycloadditionen des Benzvalens},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-58492},
  year      = {1989},
  abstract  = {No abstract available},
  subject      = {Organische Chemie},
  language  = {de}
}
@article{ChristlBraun1989,
  author    = {Christl, Manfred and Braun, Max},
  title     = {Photocycloadditions of Benzvalene},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-58506},
  year      = {1989},
  abstract  = {No abstract available},
  subject      = {Organische Chemie},
  language  = {en}
}