 Further Reading. The thesis with an introduction to the arguments can be found in Reichenbach (2008). Re-statements and slight variations of the arguments in the thesis can also be found in Reichenbach (1920c), Reichenbach (1920e) and to a lesser extent in Reichenbach (1930g) and chapter 9 of Reichenbach (1949f). A synopsis is also given in Padovani (2011), while Eberhardt (2011) provides a critical assessment of the thesis.