https://www.iareporter.com/articles/germanys-wintershall-lodges-duo-of-treaty-arbitrations-against-russia/ (requires subscription)
https://wintershalldea.com/en/newsroom/wintershall-dea-changes-legal-form-and-focuses-new-company-tasks
https://globalarbitrationreview.com/article/wintershall-judge-steps-down-in-dubai (requires subscription)
https://www.iareporter.com/arbitration-cases/wintershall-v-russia-2/ (requires subscription)