@article{Baltzer1998,
  author    = {Baltzer, Wolfgang},
  title     = {Betriebstechnik in Strassentunneln},
  series = {Strassenverkehrstechnik. 42 (1998), H. 12},
  journal   = {Strassenverkehrstechnik. 42 (1998), H. 12},
  isbn      = {0039-2219},
  pages     = {650 -- 655},
  year      = {1998},
  language  = {de}
}