Generation of slow intense optical solitons in a resonance photonic crystalI. V. Mel'nikov, A. Knigavko, J. S. Aitchison and C. A. MerchantEur. Phys. J. Special Topics, 160 (2008) 301-310DOI: https://doi.org/10.1140/epjst/e2007-00733-8