@incollection{Wardetzky2008, author = {Max Wardetzky}, title = {Convergence of the Cotan formula - an overview}, booktitle = {Discrete Differential Geometry}, editor = {Alexander I. Bobenko and John Sullivan and G{\"u}nter Ziegler}, pages = {275 -- 286}, doi = {10.1007/978-3-7643-8621-4}, year = {2008}, language = {en} }