@incollection{SchuhStichGudergan2023,
  author    = {G{\"u}nther Schuh and Volker Stich and Gerhard Gudergan},
  title     = {Reference Models - A Basis for Designing Efficient Technical Services},
  booktitle = {Industrial Engineering and Ergonomics: Visions, Concepts, Methods and Tools. Festschrift in Honor of Professor Holger Luczak},
  editor    = {Christopher M. Schlick},
  isbn      = {978-3-642-01292-1},
  doi       = {10.1007/978-3-642-01293-8_11},
  year      = {2023},
}