From Citizendium, the Citizens' Compendium
- Please sort and annotate in a user-friendly manner and consider archiving the URLs behind the links you provide. See also related web sources.
- Carl Hoefer (Jan 21, 2010). Edward N. Zalta, ed:Causal Determinism. The Stanford Encyclopedia of Philosophy (Spring 2010 Edition).
- Julie Yoo (February 10, 2007). Mental causation. Internet Encyclopedia of Philosophy.
- Norman Swartz (February 20, 2009). Laws of nature. Internet Encyclopedia of Philosophy.