[2] Patryk PAWLAK, Understanding hybrid threats, At a glance, June 2015, European Parliamentary Research Service, available on http://www.europarl.europa.eu/thinktank, accessed on 9 April 2017.
[3] JM CALHA, , Hybrid warfare: NATO’s new strategic challenge?, NATO, 7 April 2015,available on http://www.natopa.int/Default.asp?CAT2=3924&CAT1=16&CAT0=2&COM=4018&MOD=0&SMD=0&SSMD=0&STA=0&ID=0&PAR=0&LNG=0, accessed on 6 April 2017.
[4] Hybrid Warfare: A New Phenomenon in Europe’s Security Environment, Updated and extended 2 nd edition Published by Jagello 2000 for NATO Information Centre in Prague. Praha - Ostrava 2016.
[5] John CHAMBERS , Countering gray-zone hybrid threats, An Analysis of Russia’s New Generation Warfare and Implications for the US Army, Modern War Institute, p. 14, October 18, 2016.
[6] Marius PRICOPI, Studiu privind efectele războiului hibrid asupra infrastructurilor critice, publicat în: Ghiță Bârsan (coord.), Anca Dinicu (coord.), Dorel Badea (coord.), „Analiza și modelarea conceptuală a situațiilor complexe”, Editura Academiei Forțelor Terestre „Nicolae Bălcescu”, Sibiu, pp. 56-69, 2016.
[7] LTC Bertrand BOYER, Countering Hybrid Threats in Cyberspace, February 15, 2017, The Cyber Defense Review, available on http://www.cyberdefensereview.org, accessed on 06 April 2017.
[8] Aurelian RAŢIU, Countering Hybrid Threats by Integrating Civilian-Military Capabilities, published at the 22-th International Scientific Conference „The nowledge Based Organization”, Sibiu, June, 2016,“Nicolae Bălcescu” Land Forces Academy, pp. 109- 115, 2016.10.1515/kbo-2016-0020