A high-resolution Ramsey-Bordé spectrometer for optical clocks based on cold Mg atomsJ. Keupp, A. Douillet, T. E. Mehlstäubler, N. Rehbein, E. M. Rasel and W. ErtmerEur. Phys. J. D, 36 3 (2005) 289-294DOI: https://doi.org/10.1140/epjd/e2005-00302-7