1. Developmental dyslexia: prevailing diagnostic concepts and a new diagnostic approach through patterns of reading and spelling;Boder,1971
2. Language development, chapter VIII;Castner,1940
3. Über die Zeit der Erkennung and Benennung von Schrif tzeichen;Cattell;Bildern and Farben, Philosophische Studien,1885
4. The Dyslexic Child;Critchley,1970
5. Color-naming in dyslexic boys;Denckla;Cortex,1972