“Comune di Campione d'Italia” (Italian). 2009年1月12日閲覧。 "... pur essendo territorio italiano Campione è doganalmente ed economicamente svizzero. Così pure la moneta e la rete telefonica. ("... although being Italian territory, Campione is customs-wise and economically Swiss. Also the currency and the telephone network.")
国立統計研究所（ISTAT）. “Resident population on 1st January : Lombardia” (英語). 2021年5月10日閲覧。左側メニューのPopulation and Households > Population > Resident population on 1st January > Regions and municipalities より州を選択
