Simulation and Design of Tap-Feeded Multi-Wires for Mobile Communication Filters. - Junya Ishii; Kazuhito Murakami; Shigeki Hontsu; Masamitsu Asai (ESM, 1996)

Designing Coplanar Superconducting Lumped-Element Bandpass Filters Using a Mechanical Tuning Method. - Shigeki Hontsu; Kazuyuki Agemura; Hiroaki Nishikawa; Masanobu Kusunoki (IEICE Trans. Electron., 2006)