1. Armbruster, William, “Heading East: The EU's Expansion Creates Opportunities for Logistics Providers,” The Journal of Commerce, May-June, 2003, 20-21.
2. Foster, Thomas A., (2004), “The Trends Changing the Face of Logistics Outsourcing Worldwide,” Global Logistics and Supply Chain Strategies, 8(6), 32-34, 36- 38, 40.
3. Lieb, Robert and Brooks Bentz (2004), “The Use of Third-Party Logistics Services by Large American Manufacturers: The 2003 Survey,” Transportation Journal, 43 (3), 24-33.
4. Lieb, Robert and John Miller (2002), “The Use of Third-Party Logistics Service by Large American Manufacturers: The 2002 Survey,” International Journal of Logistics: Research and Applications, 5(1), 1-12.