@article{HausmannKassKlodetal.2004,
  author    = {J. Hausmann and S. Kass and Sabrina Klod and Erich Kleinpeter and Berthold Kersting},
  title     = {Binucleating aza-sulfonate and aza-sulfinate macrocycles : Synthesis and coordination chemistry},
  year      = {2004},
}