@article{Hillen2008,
  author    = {Walter Hillen},
  title     = {\&\#923;, Image production in e+e- annihilation at 33 GeV centre of mass energy. TASSO Collaboration},
  journal   = {Physics Letters B. 105 (1981), H. 4},
  pages     = {75 -- 80},
  year      = {2008},
}