1. Alexander D (2002) Principles of emergency planning and management. University of Massachusetts: Terra Publishing, pp 5–7
2. Allen P (2001) What is complexity science? Knowledge of the limits to knowledge. J Emergence 3(1):24– 42
3. Bloom BS (eds) (1956) Taxonomy of educational objectives: cognitive domain, vol 1. New York, McKay
4. Business dictionary (2017) Competence. http://www.businessdictionary.com/definition/competence.html
5. Cardona OD (2005) Indicators of disaster risk and risk management: summary report. Washington D.C.: Inter-American Development Bank, pp 2–3