@inbook{f9b1c13074cf11dbbee902004c4f4f50,
title = "Information Exchange in the Ubaid Period in Mesopotamia and Syria",
abstract = " ",
keywords = "Faculty of Humanities, Ubaid, symbols, seal, figurines, information system, pottery",
author = "Ingolf Thuesen",
year = "1992",
language = "English",
isbn = "2-86538-228-1",
pages = "13--19",
editor = "Dominique Charpin and Francis Joann{\`e}s",
booktitle = "La circulation des biens, des personnes et des id{\'e}es dans le Proche-Orient ancien",
publisher = "{\'E}ditions Recherche sur les civilisations",
}