Author	Title	Journal	ISSN	Publisher	Date	Volume	Number	Page	URL	URL(DOI)
IWAHORI Yuji,KAMEI Hiroyuki,YAMAGUCHI Shoichiro	Direct shape reconstruction of 3-D object from multiple shading images	Journal of light and visual environment	03878805	The Illuminating Engineering Institute of Japan (IEIJ)	1987-00-00	11	1	13-21	http://ci.nii.ac.jp/naid/110001144117/en/