@article{833901, author = {W DeGraffenreid and Craig Sansonetti}, title = {Reference Lines in the Optogalvanic Spectra of Urnaium and Thorium over the Wavelength Range 604 nm to 755 nm}, year = {2002}, number = {19}, month = {2002-01-01 00:01:00}, publisher = {Journal of the Optical Society of America B-Optical Physics}, language = {en}, }