Reviews ; Zweisprachigkeit; Bilingualism ; Auswanderer; Emigrants; Migrant; Aussiedler; Gastarbeiter; Arbeitsmigranten; Immigrants/Emigrants ; Transfer (languages in contact) ; Adstratum language; Adstratsprache; Interference ; Transfer (second language acquisition) ; Transfer (Zweitspracherwerb) ; Cross-linguistic influence (second language acquisition) ; Interference (second language acquisition) ; Italian ; Latin America (Spanish language in) ; Lateinamerika (span. Sprache in) ; Spanish in Latin America