@article{SengeHatscherWieheetal.2004,
  author    = {Mathias O. Senge and S. S. Hatscher and A. Wiehe and Katja Dahms and Alexandra Kelling},
  title     = {The dithianyl group as a synthon in porphyrin chemistry : condensation reactions and preparation of formylporphyrins under basic conditions},
  year      = {2004},
}