@article{Hillen1979,
  author    = {Hillen, Walter},
  title     = {Evidence for planar events in e+e\&\#8722; annihilation at high energies. TASSO Collaboration},
  series = {Physics Letters B. 86 (1979), H. 2},
  journal   = {Physics Letters B. 86 (1979), H. 2},
  isbn      = {0370-2693},
  pages     = {243 -- 249},
  year      = {1979},
  language  = {en}
}