@article{natori2008,
	author="K. Natori and R. Oboe and K. Ohnishi",
	title="Robustness on Model Error of Time Delayed Control Systems with Communication Disturbance Observer - Verification on An Example Constructed by Double Integration Controlled Object and pd Controller",
	journal="denki gakkai ronbunshi. d sangyo oyo bumonshi",
	year="2008",
	pages="709-717",
	volume="128",
	issn="0913-6339"
}