@InProceedings{jue:09o, author = {G. Della Vecchia and Bert J\"uttler}, title = {Piecewise Rational Manifold Surfaces with Sharp Features}, booktitle = {The Mathematics of Surfaces XIII}, year = {2009}, editor = {E. Hancock and R. Martin}, series = {Lecture Notes in Computer Science}, publisher = {Springer}, pages = {90--105}, volume = {5654}, }