1. Andreucci F (1979) In: Hobsbawm EJ et al (eds) Storia del Marxismo, vol 2. Einaudi, Turin, pp 6–61
2. Anonymous (1938) Universities in the British empire. Nature, 10 June 1938
3. Anonymous (1942) Science and the war effort. Nature, 29 July 1942
4. Anonymous (1944) Society for freedom in science. Nature 154(8 July):48
5. Banfi A (1962) Vita di Galileo Galilei. Feltrinelli, Milan