1. Talsvårigheter vid skolstarten och ett år senare;Alstam-Malcus;Nordisk Tidskr. Logoped. Foniat.,1976
2. Zerebrale Dominanz und bevorzugte Händigkeit;Arnold,1970
3. Prevalence of speech and language disorders in 5-year-old kindergarten children in the Ottawa-Carleton region;Beitchman;J. Speech Hear. Disord.,1986
4. Speech Correction in the Schools;Eisenson,1971
5. Three-year follow-up at age 10 of children with minor neurodevelopmental disorders. II;Gillberg,1983