1. Biro, M., Messnarz, R., Davidson, A.G.: The impact of national cultural factors on the effectiveness of process improvement methods: the 3rd dimension. In: Proceedings of the 11th ICSQ Conference, ASQ, USA (2001)
2. Messnarz, R., Tully, C.J., Biro, M.: Better Software Practice for Business Benefit: Principles and Experiences. IEEE Computer Society Press, Los Alamitos (1999)
3. Korsaa, M., et al.: The SPI manifesto and the ECQA SPI manager certification scheme. J. Softw.: Evol. Process 24(5), 525–540 (2012)
4. Korsaa, M., et al.: The people aspects in modern process improvement management approaches. J. Softw.: Evol. Process 25(4), 381–391 (2013). Special Issue: Selected Industrial Experience Papers of EuroSPI 2010
5. Messnarz, R., Ekert, D., Reiner, M., O’Suilleabhain, G.: Human resources based improvement strategies—the learning factor. J. Softw.: Evol. Process 13(4), 355–362 (2008)