[Intellectual quantitative problem in the medicine and mechanized documentation as a solution trial, use of punched cards in medicine]. DERBOLOWSKY U. Klin Wochenschr. 1953 Sep 15;31(35):825-31. doi: 10.1007/BF01472364. PMID: 13097924
[Medical documentation in unified medicine in Nowy Sacz]. NOWAK M. Zdrow Publiczne. 1954 May-Jun;3:217-20. PMID: 13188040
Health records in small plants. MILLMAN N, DONNELLY V. Ind Med Surg. 1946 Aug;15:491-7. PMID: 20996092
[Mechanized statistical treatment of medical records]. Smirnov BN. Voen Med Zh. 1972 Jul;7:21-2. PMID: 5069102