Dr Mälksoo has published an article ‘Countering Hybrid Warfare as Ontological Security Management: The Emerging Practices of the EU and NATO’ as part of the special issue ‘Ontological (In)Security in the European Union’ in the European Security 27(3) (2018).
The article proposes an ontological security-inspired reading of the EU and NATO’s engagement with hybrid threats and can be accessed here: https://www.tandfonline.com/doi/full/10.1080/09662839.2018.1497984.
The whole special issue, co-edited by Catarina Kinnvall, Ian Manners and Jennifer Mitzen, is available here: https://www.tandfonline.com/toc/feus20/27/3?nav=tocList.