Phillips DF, Glenday AG, Li C-H, Cramer C, Furesz G, Chang G, Benedick AJ, Chen L-J, Kärtner FX, Korzennik S, et al. Calibration of an astrophysical spectrograph below 1 m/s using a laser frequency comb. Optics Express. 2012;20 (13) :13711-13726.