Blum, Alexander S. Department Structural Changes in Systems of Knowledge, Max Planck Institute for the History of Science, Max Planck Society;
Blum, A. S. (2015). QED and the man who didn't make it: Sidney Dancoff and the infrared divergence. Studies in History and Philosophy of Science. Part B, Studies in History and Philosophy of Modern Physics, 50, 70-94. doi:10.1016/j.shpsb.2015.03.008.