K. Inoue, M. Wada, K. Sakoda, A. Yamanaka, M. Hayashi, and J. W. Haus, "Two-dimensional photonic band structure in the near-infrared regime,"
in Quantum Electronics and Laser Science Conference, T. Heinz, G. Stegeman, J. Bokor, and R. Slusher, eds.,
Vol. 16 of OSA Technical Digest
(Optical Society of America, 1995), paper QWH2.