@article{Hillen2006,
  author    = {Walter Hillen},
  title     = {Charged pion production in e--e+ annihilation at 14, 22 and 34 GeV c.m. energies. TASSO Collaboration},
  journal   = {Physics Letters B. 113 (1982), H. 1},
  pages     = {98 -- 104},
  year      = {2006},
}