@unpublished{TUW-210707, author = {Templ, Matthias and Kowarik, Alexander and Hulliger, Beat}, title = {Visualization of Complex Statistical Information in Maps: The Checkerplot}, year = {2012}, keywords = {Visualisation of Indicators, Checkerplot, R}, note = {invited; talk: Joint Statistical Meeting, San Diego; 2012-07-28 -- 2012-08-02} }