https://theconversation.com/es-ilegal-el-bombardeo-de-gaza-segun-el-derecho-internacional-215688
https://www.piie.com/blogs/realtime-economics/russias-war-ukraine-sanctions-timeline?utm_source=update-newsletter&utm_medium=email&utm_campaign=piie-insider&utm_term=yyyy-mm-dd
https://www.politico.eu/article/eu-leaders-find-themselves-incapable-of-action-european-council-summit-wars-ukraine-iran/
http://www.ipg-journal.de/regionen/europa/artikel/detail/ein-bisschen-mehr-als-freundschaft-2458/