@article{HeydenreichKochKleinpeteretal.1997,
  author    = {Matthias Heydenreich and Andreas Koch and Erich Kleinpeter and Thomas Zimmermann},
  title     = {Dynamic NMR study of the flexibility of 2-amino-3-aroyl-4,6-diaryl-pyrylium salts},
  doi       = {10.1007/s002160050205},
  url       = {http://www.springerlink.com/content/110258},
  year      = {1997},
}