1. Terry, L.: 2010 Third-party logistics - The state of logistics outsourcing, Capgemini, the Georgia Institute of Technology, Panalpina and eyefortransport (2010)
2. Terry, L.: 2012 Third-party logistics - The state of logistics outsourcing, Capgemini, the Georgia Institute of Technology, Panalpina and eyefortransport (2012)
3. Schmitt, A.: 4PL-Providing-TM als strategische Option für Kontraktlogistikdienstleister: eine konzeptionell-empirische Betrachtung, Dt. Univ.-Verl, Wiesbaden (2006)
4. Nissen, V., Bothe, M.: Fourth Party Logistics - Ein Überblick. Logistik Management, 16–25 (2002)
5. Bamford, C.: The changing supply of logistics services - a UK perspective. In: Waters, C.D.J. (ed.) Global Logistics: New Directions in Supply Chain Management, Kogan Page, London (2010)