Timeline for Two puzzles on the Projective Symmetry Group(PSG)?
Current License: CC BY-SA 3.0
2 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 20, 2015 at 11:54 | history | edited | Kai Li | CC BY-SA 3.0 |
added 62 characters in body
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| Sep 21, 2013 at 14:58 | history | answered | Kai Li | CC BY-SA 3.0 |