| Bibliography |  Suggestions |
| 1 | Sigrist, M. - Ozaki, T., Neo-Sumerian Administrative Tablets from the Yale Babylonian Collection. Part One, Biblioteca del Próximo Oriente Antiguo 6, Madrid 2009 |
| 2 | Tsouparopoulou, C., The Ur III Seals Impressed on Documents from Puzriš-Dagān (Drehem), Heidelberger Studien zum Alten Orient 16, Heidelberg 2015 |
| http://collections.peabody.yale.edu/search/Record/YPM-BC-027943 |
| http://oracc.museum.upenn.edu/epsd2/P210561 |
| http://www.ebl.lmu.de/fragmentarium/YBC.14526 |
| http://cdli.ucla.edu/P210561 |