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Number of items: 7.

De Sabbata, Stefano; Cöltekin, Arzu; Eccles, Kathryn; Hale, Scott; Straumann, Ralph K (2015). Collaborative visualizations for Wikipedia critique and activism. In: ICWSM 2015. The Ninth International AAAI Conference on Weblogs and Social Media, Oxford (UK), 26 May 2015 - 29 May 2015.

Straumann, Ralph K; Cöltekin, Arzu; Andrienko, Gennady (2014). Towards (re)constructing narratives from georeferenced photographs through visual analytics. Cartographic Journal, 51(2):152-165.

Straumann, Ralph K; Purves, Ross S (2011). Computation and elicitation of valleyness. Spatial Cognition and Computation, 11(2):178-204.

Straumann, Ralph K (2009). Experiences in developing landform ontologies. In: Purves, Ross S; Gruber, Stephan; Straumann, Ralph K; Hengl, Tomislav. Geomorphometry 2009 Conference Proceedings. Zurich, CH: Department of Geography, University of Zurich, 17-21.

Geomorphometry 2009 Conference Proceedings. Edited by: Purves, Ross S; Gruber, Stephan; Straumann, Ralph K; Hengl, Tomislav (2009). Zurich, CH: Department of Geography, University of Zurich.

Straumann, Ralph K; Purves, Ross S (2008). Delineation of valleys and valley floors. In: Cova, T J; et al. Geographic Information Science. Berlin, Heidelberg: Springer Verlag, 320-336.

Straumann, Ralph K; Purves, Ross S (2007). Resolution sensitivity of a compound terrain derivative as computed from LiDAR-based elevation data. In: Fabrikant, Sara I; Wachowicz, Monica. The European information society. Leading the way with Geo-information. Berlin: Springer, 87-109.

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