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when toggle format what by license comment
Jun 8, 2010 at 12:44 history edited Torsten Ekedahl CC BY-SA 2.5
Fixed small erros and added reference.
Jun 8, 2010 at 8:53 history edited Torsten Ekedahl CC BY-SA 2.5
Corrected a thinko.
Jun 8, 2010 at 6:53 history answered Torsten Ekedahl CC BY-SA 2.5