Recent improvements in NIST-F1 and a resulting accuracy of δf/f=0.61×10:::-15:::

Thomas P. Heavner, Steven R. Jefferts, Elizabeth A. Donley, Jon H. Shirley, Thomas E. Parker. Recent improvements in NIST-F1 and a resulting accuracy of δf/f=0.61×10:::-15:::. IEEE T. Instrumentation and Measurement, 54(2):842-845, 2005. [doi]

Abstract

Abstract is missing.