2020-10-12T13:05:02.1270000Z
https://www.termdat.bk.admin.ch/entry/133809
Encyclopædia Britannica, "Bilingualism" ([Internet, 2020-08-12](https://www.britannica.com/topic/bilingualism))
Duden, "zweisprachig" ([Internet, 2020-08-12](https://www.duden.de/rechtschreibung/zweisprachig))
Le Grand Robert de la langue française, "bilingue" ([Internet, 2020-10-12](https://grandrobert.lerobert.com/))
Treccani, Vocabolario, "bilingue" ([Internet, 2020-08-12](http://www.treccani.it/vocabolario/bilingue/))