1. Ahern DM, Clouse A, Turner R (2003) CMMI distilled: a practical introduction to integrated process improvement, 2nd edn. Addison-Wesley, Boston
2. Ahlemann F, Schroeder C, Teuteberg F (2005) Kompetenz- und Reifegradmodelle für das Projektmanagement – Grundlagen, Vergleich und Einsatz. ISPRI-Arbeitsbericht No. 01/2005, Osnabrück
3. Aho M (2009) A capability maturity model for corporate performance management – an empirical study in large Finnish manufacturing companies. In: eBRF – a research forum to understand business in knowledge society, Jyväskylä
4. Alter S (2003) 18 reasons why IT-reliant work systems should replace “the IT artifact” as the core subject matter of the IS field. Communications of the Association for Information Systems 12(23):366–395
5. Ansoff HI (1980) Strategic issue management. Strategic Management Journal 1(2):131–148