Page history
1 June 2018
1 June 2016
7 June 2013
10 November 2010
27 April 2009
24 April 2009
22 April 2009
16 August 2005
23 June 2005
13 June 2005
10 June 2005
Collapse exception section, some wording fixes.
m−9
Complete rewrite. Some old text moved to "File version". TODO: point group links somewhere.
+845