RT Journal Article SR Electronic T1 Tungstous oxide; a new oxide of tungsten-associated with columbous oxide JF American Journal of Science JO Am J Sci FD American Journal of Science SP 280 OP 286 DO 10.2475/ajs.s3-45.268.280 VO s3-45 IS 268 A1 W. P. Headden YR 1893 UL http://www.ajsonline.org/content/s3-45/268/280.abstract AB