Contact Modeling for Solids and Particles
  MLA
  Popp, and Peter Wriggers. Contact Modeling for Solids and Particles. Springer International Publishing, 2018.
  APA
  Popp, P., & Wriggers, P. (2018). Contact Modeling for Solids and Particles. Springer International Publishing.
  Chicago
  Popp, and Peter Wriggers. Contact Modeling for Solids and Particles. : Springer International Publishing, 2018.