Keywords: Sociolinguistics ; Sociolinguistics ; Immigrant children Language ; Immigrant children Language ; Children of immigrants Language ; Children of immigrants Language ; Children of immigrants ; Children of immigrants ; Immigrant children ; Immigrant children ; Sociolinguistics ; Sociolinguistics ; Pavia (Italy : Province) ; Piedmont (Italy) ; Pavia (Italy : Province) Emigration and immigration ; Social aspects ; Piedmont (Italy) Emigration and immigration ; Social aspects ; Aufsatzsammlung ; Provinz Pavia ; Piemont ; Einwanderer ; Sprachgebrauch ; Mehrsprachigkeit ; Italienisch ; Sprachkompetenz