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Baumann, Ramona; Wihler, Thomas (2018). A Nitsche finite element approach for elliptic problems with discontinuous Dirichlet boundary conditions. Computational methods in applied mathematics, 18(3), pp. 373-381. De Gruyter 10.1515/cmam-2017-0057
Baumann, Ramona; Wihler, Thomas (2017). A note on Sassenfeld matrices. Elemente der Mathematik, 72(2), pp. 62-65. European Mathematical Society 10.4171/EM/325