1. Mille Santi del Giorno;Bargellini,1977
2. Noble, D.F., A World Without Women: The Clerical Culture of Western Science.
3. Little Science, Big Science;De Solla Price,1963
4. Das technologische Patt: Innovationen überwinden die Depression;Mensch,1975
5. Dynamo and the Virgin Reconsidered;White,1968