@book{EchterhoffKlauerPfafferottetal.2015,
  author    = {Wilfried Echterhoff and Karl Josef Klauer and Ingo Pfafferott and K. E. Reinhardt and B. Rollett and Ulrich Winterfeld},
  title     = {Verkehrserziehung in der Sekundarstufe I},
  year      = {2015},
}