D. Zoller, S. Doerfel, R. Jäschke, G. Stumme, and A. Hotho. Journal of Informetrics10 (3):
732--749(June 2016)\copyright 2016 Elsevier. This is an author produced version of a paper subsequently published in Journal of Informetrics . Uploaded in accordance with the publisher's self-archiving policy. Article available under the terms of the CC-BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/).
S. Doerfel, D. Zoller, P. Singer, T. Niebler, A. Hotho, and M. Strohmaier. Proceedings of the Companion Publication of the 23rd International Conference on World Wide Web Companion, page 251-252. Republic and Canton of Geneva, Switzerland, International World Wide Web Conferences Steering Committee, (2014)