[ACM Press the 5th Information Interaction in Context Symposium - Regensburg, Germany (2014.08.26-2014.08.30)] Proceedings of the 5th Information Interaction in Context Symposium on - IIiX '14 - Usability and perception of young users and adults on targeted web search enginesGossen, Tatiana; Höbel, Juliane; Nürnberger, Andreas · 2014