Timeline for Petersson square of twist
Current License: CC BY-SA 3.0
2 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Oct 30, 2017 at 8:04 | history | edited | David Loeffler | CC BY-SA 3.0 |
added 570 characters in body
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| Oct 30, 2017 at 6:53 | history | answered | David Loeffler | CC BY-SA 3.0 |