A cesium fountain frequency standard: preliminary results Clairon, A. ; Laurent, P. ; Santarelli, G. ; Ghezali, S. ; Lea, S. N. ; Bahoura, M. Abstract Publication: IEEE Transactions on Instrumentation Measurement Pub Date: April 1995 DOI: 10.1109/19.377790 Bibcode: 1995ITIM...44..128C