@misc{Mayr1997diss, author = {Mayr, Rudolf H.}, year = {1997}, school = {Rijksuniversiteit Leiden}, title = {The seal impressions of {Ur} {III} {Umma}}, type = {phdthesis}, } @book{Mayr2005SITU, address = {Lawrenceville, NJ}, author = {Mayr, Rudolf H.}, year = {2005}, publisher = {Rudolf H. Mayr}, title = {Seal {Impressions} on tablets from {Umma}}, } @book{MayrCUSAS7, author = {Mayr, Rudolf H.}, year = {2024}, title = {The {Seal} {Impressions} of the {Gar}{\v s}ana and the {Umma} archives}, }