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2. and , “Duality Transformations for General Bi-Isotropic (Non-Reciprocal Chiral) Media,” Helsinki University of Technology Electromagnetics Laboratory Report Series No. 78, November 1990.
3. “Quasi-Static Image Theory for the Bi-Isotropic (Non-Reciprocal Chiral) Sphere,” Helsinki University of Technology, Electromagnetics Laboratory Report Series No. 81, December 1990.
4. “Polarisabilities and Maxwell-Garnett Formulae for Bi-Isotropic Sphere,” Electromagnetics Laboratory Report Series No. 84, February 1991.
5. Time-Domain Green Function Corresponding to a Time-Harmonic Point Source in Complex Space