@unpublished{HoffmannMesrefRuehl2001,
  author  = {L. Hoffmann and L. Mesref and W. R{\"u}hl},
  title   = {Conformal partial wave analysis of AdS amplitudes for dilaton-axion four-point functions},
  institution = {Fachbereich Physik},
  year    = {2001},
  url  = {http://nbn-resolving.de/urn:nbn:de:hbz:386-kluedo-11306},
}