https://invenergyllc.com/news/invenergy-files-for-international-arbitration-against-the-republic-of-poland-for-violations-of-the-united-states-poland-bilateral-investment-treaty
https://www.iareporter.com/articles/us-investor-initiates-arbitration-against-poland/ (requires subscription)
https://globalarbitrationreview.com/article/1148986/poland-to-face-claim-over-wind-farms (requires subscription)
https://www.iareporter.com/articles/poland-faces-new-headache-as-us-renewable-energy-investor-warns-of-arbitration-over-wind-farm-contracts/ (requires subscription)
https://www.iareporter.com/articles/christopher-greenwood-tapped-by-co-arbitrators-to-chair-uncitral-investment-treaty-arbitration/ (requires subscription)