Fonti: FFA think tank americano: https://fee.org/articles/russia-almost-sold-alaska-to-this-tiny-european-country-instead-of-the-united-states/ Vaterland, il più grande e storico giornale del Liechtenstein: https://www.vaterland.li/liechtenstein/gesellschaft/vermischtes/es-ist-sicher-kein-geruecht-art-359875