1. Aull, M. (2021). Dovetailing marketing and sales automation. In U. Hannig (Ed.), Marketing and sales automation. Springer Gabler.
2. Bacon, A. (2021). Strategic account-based marketing: How to tame this beast. In U. G. Seebacher (Ed.), B2B marketing. Management for professionals. Springer.
3. Brent, A., Matthew, D., Pat, S., & Nick, T. (2015). The challenger customer. Penguin Publishing Group.
4. Burgholz, R. (2017). Development of a buyer persona. In U. Hannig (Ed.), Marketing and sales automation–basic tools implementation. Everything you need to know (pp. 49–58). Springer.
5. Chamoni, P., & Gluchowski, P. (2006). Analytische informationssysteme: Business intelligence-technologien und –anwendungen (3. Auflage ed.). Springer.