@article{KammerKellingBaieretal.2009,
  author    = {Stefan Kammer and Alexandra Kelling and Heiko Baier and Wulfhard Mickler and Carsten Dosche and Knut Rurack and Andreas Kapp and Fred Lisdat and Hans-J{\"u}rgen Holdt},
  title     = {2,11-dialkylated 1,12-diazaperylene copper(I) complexes : first supramolecular column assemblies by pi-pi stacking between homoleptic tetrahedral metal complexes, exhibiting low-energy MLCT transitions},
  doi       = {10.1002/ejic.200900695},
  url       = {http://www3.interscience.wiley.com/journal/27721/home},
  year      = {2009},
}