NIST-NPL interlaboratory pulse measurement comparison. - Nicholas G. Paulter Jr.; Andrew J. A. Smith; Donald R. Larson; T. Michael Souders; A. G. Roddie (IEEE Trans. Instrum. Meas., 2003)

Vector calibration of optical reference receivers using a frequency-domain method. - David A. Humphreys; Matthew R. Harper; Andrew J. A. Smith; Ian M. Smith (IEEE Trans. Instrum. Meas., 2005)

Rise-Time Calibration of 50-GHz Sampling Oscilloscopes: Intercomparison Between PTB and NPL. - Mark Bieler; Steffen Seitz 002; Meinhard Spitzer; Günter Hein; Klaus Pierz; Uwe Siegner; M. Anjan Basu; Andrew J. A. Smith; Matthew R. Harper (IEEE Trans. Instrum. Meas., 2007)