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| 1 | Contenau, G., Umma sous la dynastie d'Ur, Paris 1916 |
| 2 | Frayne, D.R., Ur III Period (2112-2004 BC), The Royal Inscriptions of Mesopotamia. Early Periods 3/2, Toronto - Buffalo - London 1997 |
| http://oracc.museum.upenn.edu/epsd2/P139515 |
| http://cdli.earth/P139515 |