@article{HoettgesRitterbachEls2005,
  author    = {J{\"o}rg H{\"o}ttges and E. Ritterbach and H. Els},
  title     = {Optical Improvement of LDV-Measurement in Pipe Flow / Ritterbach, E.; J. H{\"o}ttges; H. Els},
  journal   = {Laser anemometry : advances and applications; proceedings of the 2. International Conference, Strathclyde, Scotland, 21st to 23rd September 1987 / ed. by John Turner ... UK LDA Users Group},
  year      = {2005},
}