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| 1 | Snell, D.C. - Lager, C., Economic Texts from Sumer, Yale Oriental Series 18, New Haven - London 1991 |
| 2 | Owen, D.I., "The Ensis of Gudua", Acta Sumerologica 15 (1993) 131-152 |
| http://collections.peabody.yale.edu/search/Record/YPM-BC-002935 |
| http://oracc.museum.upenn.edu/epsd2/P142404 |
| http://www.ebl.lmu.de/library/Lager.29 |
| http://cdli.earth/P142404 |