Schemmel, Matthias Department Structural Changes in Systems of Knowledge, Max Planck Institute for the History of Science, Max Planck Society;
Schemmel, M. (2009). Galilei, Galileo: Sidereus Nuncius. In H. L. Arnold (Ed.), Kindlers Literatur Lexikon. Vol. 6 (3., völlig neu bearb. Aufl., pp. 47-48). Stuttgart: Metzler.