Nicolas Genon Raimundas Matulevicius Vincent Englebert Patrick Heymans Positioning Map: a Visual Technique to Improve the Layout of Diagram Contextual Information. 2008 13 ECEASST http://eceasst.cs.tu-berlin.de/index.php/eceasst/article/view/169 db/journals/eceasst/eceasst13.html#GenonMEH08