Author	Title	Journal	ISSN	Publisher	Date	Volume	Number	Page	URL	URL(DOI)
NAKAGAWA Masayuki,WATANABE Takehiko	412 Introducing compressive residual stress on metal surfaces by irradiating ultrasonic wave in water	Pre-Prints of the National Meeting of JWS		Japan Welding Society	2004-08-20		75	266-267	http://ci.nii.ac.jp/naid/110003432160/en/