https://www.iareporter.com/articles/qatar-airways-lodges-treaty-based-arbitration-cases-against-four-middle-eastern-states/ (requires subscription)
https://globalarbitrationreview.com/article/1229237/qatar-airways-launches-treaty-claims-over-blockade (requires subscription)
https://www.reuters.com/article/us-gulf-qatar-qatar-airways/qatar-airways-seeks-5-billion-compensation-from-arab-bloc-over-airspace-ban-idUSKCN24N1F9
https://www.qatarairways.com/en/press-releases/2020/July/qatarairwaysarbitrations.html?activeTag=Press-releases
https://www.debevoise.com/news/2020/07/debevoise-represents-qatar-airways