Conferences ; Alternation (biling.) ; Language shift (biling.) ; Sprachwechsel (biling.) ; Transfer (languages in contact) ; Adstratum language; Adstratsprache; Interference ; Minoritätensprache; Minority language ; Typologie; Typology; Language typology ; Other varieties of Spanish ; Latin America (Spanish language in) ; Lateinamerika (span. Sprache in) ; Spanish in Latin America ; Malaio-Polynesische Sprachen; Western Austronesian languages ; Südamerikanische Indianersprachen; South American Indian languages; Amazonian languages; Indigenous languages of South America