@misc{Ruettgers2023,
  author    = {Martin R{\"u}ttgers},
  title     = {Einkaufs- und Beschaffungsmanagement.},
  institution = {FIR e. V. an der RWTH Aachen},
  type      = {doctoral_lecture},
  pages     = {30 Folien},
  year        = {2023},
}