@article{AhrensKiel2004,
  author    = {J. Ahrens and B. Kiel},
  title     = {Helicity dependence of the \&\#947; p-> N \&\#960; channels and multipole analysis in the \&\#916; region},
  journal   = {European Physical Journal},
  number    = {A 21},
  pages     = {323 -- 333},
  year      = {2004},
}