Toward a primary frequency standard based on a continuous fountain of laser-cooled cesium atoms. - Patrick Berthoud; Emmanuel Fretel; Alain Joyet; Gregor Dudle; Pierre Thomann (IEEE Trans. Instrum. Meas., 1999)

First results with a cold cesium continuous fountain resonator. - Gregor Dudle; Alain Joyet; Patrick Berthoud; Gaetano Mileti; Pierre Thomann (IEEE Trans. Instrum. Meas., 2001)