[Davies, Paul. 2002. How to build a Time Machine. London: Penguin Books.10.1038/scientificamerican0902-50]Search in Google Scholar
[Dowe, Phil. 2000. The Case for Time Travel. Philosophy 75: 441–51.10.1017/S0031819100000504]Open DOISearch in Google Scholar
[Earman, John. 1995. Bangs, Crunches, Whimpers, and Shrieks: Singularities and Acausalities in Relativistic Spacetimes. New York and Oxford: Oxford University Press.]Search in Google Scholar
[Goddu, Geoffrey C. 2003. Time Travel and Changing the Past (or how to kill yourself and live to tell the tale). Ratio 16: 16–32.10.1111/1467-9329.00203]Open DOISearch in Google Scholar
[Grey, W. 1999. Troubles with Time Travel. Philosophy 74: 55–70.10.1017/S0031819199001047]Open DOISearch in Google Scholar
[Lewis, David K. 1976. The Paradoxes of Time Travel. American Philosophical Quarterly 13: 145–152.]Search in Google Scholar
[MacBeath, Murray. 1982. Who Was Dr Who’s Father?. Synthese 51: 397–430.10.1007/BF00485262]Open DOISearch in Google Scholar