@article{757881, author = {Robert Webber and Charles Burroughs and Masoud Radparvar}, title = {Performance of a Cryocooled Nb DC Programmable Voltage Standard at 4 K}, year = {2007}, number = {17}, month = {2007-12-03 00:12:00}, publisher = {IEEE Transactions on Applied Superconductivity}, language = {en}, }