2007 · N. Suzuki, S. Ohira, et al. · Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics · 270
2008 · Shigeo Ohira, Naoki Arai · Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics · 104