@misc{ShiTheiselWeinkaufetal.2007, author = {Kuangyu Shi and Holger Theisel and Tino Weinkauf and Helwig Hauser and Hans-Christian Hege and Hans-Peter Seidel}, title = {Extracting separation surfaces of path line oriented topology in periodic 2D time-dependent vector fields}, institution = {Visual Data Analysis}, pages = {75 -- 82}, year = {2007}, }