1. Appel W (2012) Two leadership essentials in times of change and uncertainty
2. Battram A (1999) Navigating complexity. The Industrial Society, London
3. Becker (nd) Ten ways to live and lead forward in times of complexity and change
4. Cahill K (2010) Even in chaos: education in times of emergency. Fordham University Press, New York
5. Chuck H (2011) Leading through change: leadership tactics in times of uncertainty, Management resources, internet