@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{Gadd1928UET1, address = {London}, author = {Gadd, Cyril J. and Legrain, L{\' e}on}, number = {1}, series = {Ur {Excavations}. {Texts}}, year = {1928}, publisher = {The Trustees of the two Museums}, title = {Royal inscriptions}, }