- Quasi-Judicial Mechanisms: International Fact-Finding, forthcoming in Bailliet and Larsen (eds), Research Handbook in International Law and Peace, Cheltenham, Edward Elgar, 2018. Cecilie Hellestveit
- International Fact Finding Mechanisms – Lighting Candles or Cursing Darkness? in Promoting Peace Through International Law. Baillet and Larsen (eds) , Oxford University Press. (2015) Cecilie Hellestveit
- Evidence of Violations of International Law in Syria – and the Way Forward NOREF Report, 25 pages. (2015) Cecilie Hellestveit
- Tribes, Thugs and Terrorists and the Law – Can Non-Conventional Armed Violence Be Regulated? Briscoe (ed) in Emerging Patterns of Non-Conventional Triolene, Leiden/ Clingendale. 20 pages. (2015) Cecilie Hellestveit.
- Conduct of Hostilities under the International Humanitarian Law of Non-International Armed Conflict. PhD dissertation, Monograph. Akademika, Oslo (2014), 389 pages, Cecilie Hellestveit‘
- Searching for a ‘Principle of Humanity’ in International Humanitarian Law’, Gro Nystuen has edited the book with Kjetil Mujezinovic Larsen and Camilla Guldahl Cooper, Cambridge University Press ( 2012)
- The Geneva Conventions and the Dichotomy between International and Non-International Armed Conflict – Curse or Blessing for the Principle of Humanity? in Nystuen, Larsen and Guldal (eds), “Searching for a Principle of Humanity”, Cambridge University Press (2012), Cecilie Hellestveit
- Practice and Custom in Military Operations, including Peace Support Operations. Cecilie Hellestveit co-edited the Recueil XVIII, with Heintschell von Heinegg and Horat. (2010) Brussels, 860 pages.
- Non-lethal weapons for Norwegian armed forces. FFI-rapport-2004/01169, 57 p. Gro Nystuen et al.
- Non-lethal weapons and the relationship to international humanitarian law, FFI report, Forsvarets forskningsinstitutt, Kjeller, 2003, 36 p. Bestillingsnummer: FFI/RAPPORT-2003/01471, in Norwegian and English. Gro Nystuen