@InCollection{SCI:Bre2007b, author = "P.-T. Bremer and V. Pascucci", title = "A Practical Approach to Two-Dimensional Scalar Topology", booktitle = "Mathematics and Visualization", pages = "151--169", year = "2007", publisher = "Springer Verlag", isbn = " Online ISBN 978-3-540-70823-0 Series Title Mathematics and Visualization Series ISSN 1", url = "http://www.sci.utah.edu/publications/Bre2007b/Bremer_TopologyBasedMethInVis2006.pdf", }