@incollection{KastenHotzNoacketal.2011, author = {Jens Kasten and Ingrid Hotz and Bernd Noack and Hans-Christian Hege}, title = {On the Extraction of Long-living Features in Unsteady Fluid Flows}, booktitle = {Topological Methods in Data Analysis and Visualization}, editor = {Valerio Pascucci and Xavier Tricoche and Hans Hagen and Julien Tierny}, pages = {115 -- 126}, isbn = {978-3-642-15013-5}, doi = {10.1007/978-3-642-15014-2_10}, year = {2011}, }