Bibliographies ; Sprachenpolitik; Language management; Language politics ; Multilingualism; Polylingualism; Plurilingualism ; French as international medium ; Sprachattitüde; Linguizismus; Linguicism; Prestige; Sprachliche Unsicherheit; Linguistic insecurity ; Language planning; Purification of language; Sprachpurismus; Sprachverfall; Language decay; Language cultivation ; French