https://www.brookings.edu/articles/europes-messy-russian-gas-divorce/
https://www.timesofisrael.com/syrias-assad-welcomed-back-into-arab-fold-after-years-of-isolation-over-civil-war/
https://sosapadilla.github.io/files/papers/Bianchi_Sosa-Padilla_PP.pdf
https://www.gcsp.ch/publications/final-act-legacy-and-future-helsinki-principles-and-osce-50