@article{Warburton2020, author = {Warburton, David A.}, year = {2020}, language = {eng}, copyright = {https://creativecommons.org/licenses/by/4.0/}, title = {Introduction: Interaction on the Edge of the Earliest Empires}, volume = {Speciel Volume 7}, pages = {1 - 21}, url = "http://dx.doi.org/10.17169/refubium-28125", }