@article{10_4171_ifb_245,
     author = {Klaus Deckelnick and Friedhelm Schieweck},
     title = {Error analysis for the approximation of axisymmetric {Willmore} flow by $C^1$-finite elements},
     journal = {Interfaces and free boundaries},
     pages = {551--574},
     year = {2010},
     volume = {12},
     number = {4},
     doi = {10.4171/ifb/245},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ifb/245/}
}