1. Marketing materials and services spend;Aberdeen Group;Report,2007
2. The trust concept: Research issues for channels of distribution;Andaleeb;Research in Marketing,1992
3. Industrial purchasing: An empirical exploration of the buy-class framework;Anderson;Journal of Marketing,1987
4. On the road towards acceptance;Arminas;Supply Management,2003
5. Interaction patterns in services exchange? Some thoughts on the impact of different kinds of services on buyer–supplier interfaces and interactions;Axelsson,2000