Revision history for entry Sorensen, Roy A. (1999). "Mirror notation: Symbol manipulation without inscription manipulation" [SORMNS] |
| Time | Type | Notes |
| 2012-12-28T20:47:37 | update | System / admin update - |
| 2012-12-28T20:47:37 | update | System / admin update - |
| 2012-02-07T07:40:12 | update | |
| 2010-10-01T19:09:43 | update | System / admin update - |
