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1 | Legrain, L., Business Documents of the Third Dynasty of Ur, Ur Excavations Texts 3, London 1937 |
2 | Heimpel, W., "Twenty-Eight Trees Growing in Sumer", D.I. Owen (ed.), Garšana Studies, Cornell University Studies in Assyriology and Sumerology 6, Bethesda 2011, pp. 75-152 |
http://www.ur-online.org/subject/3776/ |
http://www.britishmuseum.org/collection/search?museum_number=130296 |
http://oracc.museum.upenn.edu/epsd2/P137137 |
http://www.ebl.lmu.de/fragmentarium/BM.130296 |
http://cdli.mpiwg-berlin.mpg.de/P137137 |