1. Caught in the middle: Buying from markets and selling to networks;Abrahamsen;Industrial Marketing Management,2015
2. Connecting to markets;Araujo,2010
3. Buying business services;Axelsson,2002
4. Barriers of purchasing departments' involvement in marketing service procurement;Bals;Industrial Marketing Management,2009
5. Firm resources and sustained competitive advantage;Barney;Journal of Management,1991