@article{Hillen2006,
  author    = {Walter Hillen},
  title     = {Evidence for planar events in e+e\&\#8722; annihilation at high energies. TASSO Collaboration},
  journal   = {Physics Letters B. 86 (1979), H. 2},
  pages     = {243 -- 249},
  year      = {2006},
}