1. NTT Communications: The People Vs The Ministry of No (2016).
http://www.ministryofno.com/
2. Zimmermann, S., Rentrop, C.: On the emergence of shadow IT - a transaction cost-based approach. In: 22nd ECIS, pp. 1–17 (2014)
3. Behrens, S., Sedera, W.: Why do shadow systems exist after an ERP implementation? Lessons from a case study. In: 8th PACIS, Paper 136 (2004)
4. Silva, L., Fulk, H.K.: From disruptions to struggles: theorizing power in ERP implementation projects. Inf. Organ. 22, 227–251 (2012)
5. Jones, D., Behrens, S., Jamieson, K., Tansley, E.: The rise and fall of a shadow system: lessons for enterprise system implementation. In: 15th ACIS, Paper 96 (2004)