@misc{ElschnerRehbergSchmidt2008, author = {Johannes Elschner and Joachim Rehberg and Gunther Schmidt}, title = {Optimal regularity for elliptic transmission problems including \$C^1\$ interfaces}, institution = {Weierstraß-Institut f{\"u}r Angewandte Analysis und Stochastik (WIAS)}, type = {preprintmatheon}, year = {2008}, }