1991 · N. Ohtsuka, J. Miyamoto, et al. · Digest of technical papers/Digest of technical papers - IEEE International Solid-State Circuits Conference · 11
2005 · H. Nakamura, K. Imamiya, et al. · Digest of technical papers/Digest of technical papers - IEEE International Solid-State Circuits Conference · 4
2003 · H. Nakamura, K. Imamiya, et al. · Digest of technical papers/Digest of technical papers - IEEE International Solid-State Circuits Conference · 3