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| 1 | Koslova, N., Ur III- Texte der St. Petersburger Eremitage, Santag 6, Wiesbaden 2000 |
| 2 | Sharlach, T.M., Provincial taxation and the Ur III state, Cuneiform Monographs 26, Leiden 2004 |
| http://cdli.earth/P211558 |
| http://oracc.museum.upenn.edu/epsd2/P211558 |