1. and , ‘Eigenvalue solvers for electromagnetic fields in cavities’, Technical Report, Institute of Scientific Computing, ETH Zurich, 1997.
2. The Plate Paradox for Hard and Soft Simple Support
3. L2-Theory of the Maxwell operator in arbitrary domains
4. and , ‘On the problem of spurious eigenvalues in the approximation of linear elliptic problems in mixed form’, 1997.