German

Penzel, Frank (1995):
Gemischte Fourier-Randelementmethoden zur Berechnung zeitharmonischer Streufelder an Schirmen.
In: Mathematische Nachrichten. 175 (1995), S. 269-324, [Article]

English

Penzel, Frank (1997):
Numerical results for scattering by a circular disk.
In: U. K. Conference on Boundar Integral Methods <1, 1997, Leeds>: Proceedings, Leeds: Univ. Press, 1997, Leeds, Univ. Press, [Conference or Workshop Item]

Penzel, Frank (1996):
A Sobolev space setting for fractional integral operators defined on the unit disk.
In: Boundary value problems, special functions and fractional calculus: Proceedings of Gakhov's Conference, Minsk 1996, Minsk: Minsk Publ. Co., 1996, Minsk, Minsk Publ. Co, [Conference or Workshop Item]

Penzel, Frank ; Teixeira, ; Teixeira, (1996):
A Wiener-Hopf-Hankel approach for the scattering by a disk.
In: Integral equations and operator theory. 24 (1996), no. 2, [Article]