@book{HaenselNeumannWedell1993,
  author    = {Horst H{\"a}nsel and Werner Neumann and Reiner Wedell},
  title     = {Physik : Bd. 1 Mechanik und W{\"a}rmelehre},
  volume    = {1},
  isbn      = {3-86025-046-9},
  year      = {1993},
}