@article{AlbertBerningBurschkaetal.1984,
  author    = {Bernhard Albert and Wilfried Berning and Christian Burschka and Siegfried H{\"u}nig and Frank Prokschy},
  title     = {Azobr{\"u}cken aus Azinen, IV. Intramolekulare [2 + 2]-Photocycloaddition zwischen parallelen C = C- und N = N-Bindungen},
  year      = {1984},
}