@article{10_4171_ifb_134,
     author = {Klaus Deckelnick and Gerhard Dziuk},
     title = {Error analysis of a finite element method for the {Willmore} flow of graphs},
     journal = {Interfaces and free boundaries},
     pages = {21--46},
     year = {2006},
     volume = {8},
     number = {1},
     doi = {10.4171/ifb/134},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ifb/134/}
}