The following publications are possibly variants of this publication:
- Direct RF to optical frequency measurements with a femtosecond laser combScott A. Diddams, David J. Jones, Jun Ye, Steven T. Cundiff, John L. Hall, Jinendra K. Ranka, Robert Windeler. tim, 50(2):552-555, 2001. [doi]
- International comparisons of femtosecond laser frequency combsLong Sheng Ma, Zhiyi Bi, Albrecht Bartels, Lennart Robertsson, Massimo Zucco, Robert Windeler, Guido Wilpers, Chris Oates, Leo Hollberg, Scott A. Diddams. tim, 54(2):746-749, 2005. [doi]