| Bibliography |  Suggestions |
| 1 | Keiser, C.E., Selected Temple Documents of the Ur Dynasty, Yale Oriental Series 4, New Haven 1919 |
| 2 | Robson, E., Mesopotamian Mathematics, 2100-1600 BC. Technical Constants in Bureaucracy and Education, Oxford Editions of Cuneiform Texts 14, Oxford 1999 |
| 3 | Rost, S., Watercourse Management and Political Centralization in Third-Millennium B.C. Southern Mesopotamia: A Case Study of the Umma Province of the Ur III Period (2112–2004 B.C.), Ph.D. Diss., Stony Brook University 2015 |
| http://collections.peabody.yale.edu/search/Record/YPM-BC-017733 |
| http://oracc.museum.upenn.edu/epsd2/P142273 |
| http://www.ebl.lmu.de/fragmentarium/YBC.3668 |
| http://cdli.mpiwg-berlin.mpg.de/P142273 |