@article{OttoGermerHegeetal.2010, author = {Mathias Otto and Tobias Germer and Hans-Christian Hege and Holger Theisel}, title = {Uncertain 2D Vector Field Topology}, journal = {Comput. Graph. Forum}, volume = {29}, pages = {347 -- 356}, doi = {10.1111/j.1467-8659.2009.01604.x}, year = {2010}, }