Across space and time : papers from the 41st Conference on Computer Applications and Quantitative Methods in Archaeology Perth 25 28 March 2013 : CAA 2013 Perth This volume presents a selection of the best papers presented at the forty first annual Conference on Computer Applications and Quantitative Methods in Archaeology. The theme for the conference was Across Space and Time and the papers explore a multitude of topics related to that concept including databases the semantic Web geographical information systems data collection and management and more