@article{SammFaissnerFrenzeletal.2005,
  author    = {Doris Samm and H. Faissner and E. Frenzel and W. Heinrigs},
  title     = {Observation of the two-photon decay of a light penetrating particle / H. Faissner, E. Frenzel, W. Heinrigs, A. Preussger, D. Samm und U. Samm},
  journal   = {Physics Letters B. Vol. 103 (1980), H. Issues 3},
  pages     = {234 -- 240},
  year      = {2005},
}