3741 2011 2011 eng 103 114 incollection Springer 0 -- -- -- Combinatorial 2D Vector Field Topology Extraction and Simplification Topological Methods in Data Analysis and Visualization 10.1007/978-3-642-15014-2_9 978-3-642-15013-5 Mathematics and Visualization yes Jan Reininghaus Valerio Pascucci Ingrid Hotz Xavier Tricoche Hans Hagen Julien Tierny Visual Data Analysis Vergleichende Visualisierung CVT Visual and Data-centric Computing