(en) Maria Carla Galavotti, Elisabeth Nemeth et Friedrich Stadler, European Philosophy of Science - Philosophy of Science in Europe and the Viennese Heritage, Springer Science & Business Media, (ISBN978-3-319-01899-7, lire en ligne), p. 214
(en) Friedrich Stadler, The Vienna Circle: Studies in the Origins, Development, and Influence of Logical Empiricism, Springer, (ISBN978-3-319-16561-5, lire en ligne), p. 9
(en) Christian Damböck et Adam Tamas Tuboly, The Socio-ethical Dimension of Knowledge: The Mission of Logical Empiricism, Springer Nature, (ISBN978-3-030-80363-6, lire en ligne), p. 157