1. 1) NOJIMA T. Panel and Panel Production Method. Japanese Patent Disclosure 2007-023661. (2007)
2. 2) NOJIMA T. Panel and Panel Pieces. Japanese Patent Disclosure 2007-055143. (2007)
3. 3) SAITO K. Modeling of New Light-Weight, Rigid Core Panels Based on Geometric Plane Tilings and Space Fillings. Transactions of the Japan Society of Mechanical Engineers, Series A. (2007) vol.73, no.735, p.102-108.
4. 4) TOKURA S. Forming Process Simulation of Truss Core Panel. Journal of the Japan Society of Mechanical Engineers.
5. 5) HALLQUIST J. O. LS-DYNA Keyword User's Manual. LSTC. (2007)