[Australian Government, Emergency Management Australia (EMA). Retrieved from: http://www.ema.gov.au/ ]Search in Google Scholar
[Bahchevanov, G. et al. (2005). Crisis management operation. Sofia: MA Pres.]Search in Google Scholar
[Buchanan-Smith, M. (2000). Role of Early Warning Systems in Decision Making Processes. Lisbon: Overseas Development Institute.]Search in Google Scholar
[European Commission, (2007). Directive 2007/60/CE for estimation and management of flood risk. Strasburg.]Search in Google Scholar
[Grasso, V. (2012). Early Warning Systems: State-of-Art Analysis and Future Directions. Nairobi: United Nations Environment Program.]Search in Google Scholar
[Kamarashev, G. (2014). Crisis management. Veliko Tarnovo: NMU Pres.]Search in Google Scholar
[Keenan, P.B. (2006). Spatial Decision Support Systems: A coming of age. Control and Cybernetics, vol. 35, No. 1.]Search in Google Scholar
[Manev, M. & Ruseva, R. (2005). Crisis and conflict management. Sofia: MA Press ]Search in Google Scholar
[Mardirosan, G. (2007). Disasters and ecology collision. Sofia: AI “prof. Marin Drinov” ]Search in Google Scholar
[Murphy, L. (1995). Geographic Information Systems: Are They Decision Support Systems? Proceedings of the 28th Hawaii International Conference on System Sciences (HICSS ’95), Hawaii.]Search in Google Scholar
[Tepeliev, Y. et all. (2003). Geographic information system, Sofia: UASG ]Search in Google Scholar
[Valchinov, V. (2003). Geoinformatics, Sofia: UASG. ]Search in Google Scholar
[*** National program for disaster defense 2014-2018, Sofia. ]Search in Google Scholar
[*** Prevention law, vol.8, from 25 January, 2011. ]Search in Google Scholar
[*** Strategy for disaster risk reducing 2014-2020, Sofia.]Search in Google Scholar
