@misc{18991, author = {Yoshihiro Ohno and Steven Brown and Thomas Larason}, title = {Report on the Key Comparison CCPR K2.a-2003}, year = {2009}, month = {2009-10-30}, publisher = {BIPM Metrologia}, url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=904379}, language = {en}, }