== References ==== External links ==*March 15, 2006: Atoms in new state of matter behave like Three Musketeers: All for one, one for all*May 27, 2014: Physicists Prove Surprising Rule of Threes
* March 15, 2006: Atoms in new state of matter behave like Three Musketeers: All for one, one for all* May 27, 2014: Physicists Prove Surprising Rule of Threes