Kindersprache (pathol.) ; Child language (pathol.) ; Specific language impairment; SLI; Dysgrammatismus (Kindersprache) ; Dysgrammatism (child language) ; Handicapped language acquisition ; Motor speech disorder; Sprachpathologie (phonet.) ; Language pathology (phonet.) ; Artikulation (pathol.) ; Articulation (pathol.) ; Language intervention; Children (speech therapy with) ; Speech therapy for children ; Kommunikationshilfen; Augmentative and alternative communication; AAC; Communication augmentation