[Organic causes of learning difficulties in childhood]. STUTTE H. Monatsschr Kinderheilkd. 1958 Dec;106(12):498-503. PMID: 13622487
CLINICAL STUDIES ON INCOORDINATION OF THE CIRCULATION, AS DETERMINED BY THE RESPONSE TO ARISING. Starr I. J Clin Invest. 1943 Nov;22(6):813-26. doi: 10.1172/JCI101455. PMID: 16695066
Case of Incoördination-Probable Astatic-Hypotonic Form of Cerebral Diplegia. [No authors listed] Proc R Soc Med. 1926;19:13-4. PMID: 19985279
[Various causes for learning difficulties]. BLADERGROEN WJ. Maandschr Kindergeneeskd. 1959 Nov;27:372-7. PMID: 13801209