@article{NISHIDA_2005,title={{Higher Order Stokes-Dirac Structures}},volume={41},ISSN={0453-4654},DOI={10.9746/sicetr1965.41.572},number={7},journal={Transactions of the Society of Instrument and Control Engineers},publisher={The Society of Instrument and Control Engineers},author={NISHIDA, Gou and YAMAKITA, Masaki},year={2005},pages={572--579}}