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3. Spillman R. His Wife and Prof J von Wagner- Jauregg. Trans. Spillman R. Baron Constantin von Economo. His life and work. Burlington: Free Press Interstate Printing Corp; 1937. p. 126
4. van Bogaert L, Théodoridès J, von Economo C. The man and scientist. Wien: Verlag der Österreichischen Akademie der Wissenschaften; 1979; p. 138.
5. Vilensky JA. (Ed.) Encephalitis lethargica. Oxford: Oxford University Press; 2011. pp. 316.