| Bibliography |  Suggestions |
| 1 | Sigrist, M., Texts from the Yale Babylonian Collections. I, Sumerian Archival Texts 2, Bethesda 2000 |
| 2 | 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-016562 |
| http://oracc.museum.upenn.edu/epsd2/P143411 |
| http://www.ebl.lmu.de/fragmentarium/YBC.1821 |
| http://cdli.mpiwg-berlin.mpg.de/P143411 |