https://dgap.org/de/forschung/publikationen/europa-braucht-eine-bessere-geooekonomische-strategie
https://www.bruegel.org/policy-brief/eu-can-manage-without-russian-liquified-natural-gas
https://mailchi.mp/bruegel/china-newsletter-080622?e=ef2db03d4d
https://havli.substack.com/p/kazakhstans-pipeline-diplomacy