@book{Frayne1997Ur, author = {Frayne, Douglas R.}, number = {vol. 3/2}, series = {Royal {Inscriptions} of {Mesopotamia} {Early} {Periods}}, year = {1997}, publisher = {University of Toronto Press}, title = {Ur {III} {Period} (2112-2004 {BC})}, } @book{Yıldız1988MVN14, address = {Roma}, author = {Y\i{}ld\i{}z, Fatma and Waetzoldt, Hartmut and Renner, Hubert}, number = {14}, series = {Materiali per il {Vocabolario} {Neosumerico}}, year = {1988}, publisher = {Multigrafica Editrice}, title = {Die {Umma}-{Texte} aus den arch{\" a}ologischen {Museen} zu {Istanbul}, {Nr}. 1-600}, }