@conference { TSH:2001a, title = {Vector and Tensor Field Topology Simplification on Irregular Grids}, booktitle = {Data Visualization 2001}, year = {2001}, pages = {107 {\textendash} 116}, publisher = {Springer}, organization = {Springer}, address = {Wien}, author = {Tricoche, X. and Gerik Scheuermann and Hans Hagen}, editor = {Ebert, D. and Favre, J. M. and Ronny Peikert} }