On unitary representations of Jacobi groups. Koichi Takase — 1992 Journal für die reine und angewandte Mathematik
Correction to the paper "On unitary representations of Jacobi groups". Koichi Takase — 1993 Journal für die reine und angewandte Mathematik
On Certain Dirichlet Series Associated with Automorphic Forms on SL (2, C). Koichi Takase — 1986 Manuscripta mathematica
On the Trace Formula of the Hecke Operators and the Special Values of the Second L-Functions Attached to the Hilbert Modular Forms. Koichi Takase — 1986 Manuscripta mathematica