@book{Penning2023,
  author    = {Isabelle Penning},
  title     = {Wirtschaft-Arbeit-Technik},
  series    = {Sonderp{\"a}dagogischer Schwerpunkt Geistige Entwicklung},
  volume    = {1},
  isbn      = {978-3-17-039858-0},
  doi       = {10.17433/978-3-17-039859-7},
  year      = {2023},
}