Erstspracherwerb; First language acquisition; Ontogenese; Language acquisition ; Kindersprache (pathol.) ; Child language (pathol.) ; Specific language impairment; SLI; Dysgrammatismus (Kindersprache) ; Dysgrammatism (child language) ; Handicapped language acquisition ; Word classes ; Indefinite article; Definite article; Unbestimmter Artikel; Bestimmter Artikel; Article ; Italian
