Publication Details Author Gretchen Campbell Andrew Ludlow Sebastian Blatt Jan Thomsen Michael Martin Marcio de Miranda Tanya Zelevinsky Martin Boyd Jun Ye Scott Diddams Thomas Heavner Thomas Parker Steven Jefferts Publication Type Journal Article Year of Publication 2008 Volume 45 Issue 5 Number of Pages 539-548 ISSN Number 0026-1394, 1681-7575 DOI 10.1088/0026-1394/45/5/008 Journal Metrologia DOIGoogle Scholar Contributors Groups Campbell Research Group