@article{HagemannUngelenkWiechert2007,
  author    = {Hans-J{\"u}rgen Hagemann and J. Ungelenk and D. U. Wiechert},
  title     = {Optical time domain reflectometry (OTDR) of diameter modulations in single-mode fibers. Hagemann, H. J.; Ungelenk, J.; Wiechert, D. U.},
  journal   = {Journal of Lightwave Technology (J-LT) / Institute of Electrical and Electronics Engineers (IEEE). 8 (1990), H. 11},
  pages     = {1641 -- 1645},
  year      = {2007},
}