E. de Clercq

The LPTF optically pumped primary frequency standard

André Clairon, Giovanni D. Rovera, E. de Clercq, 1993 .

An analysis of major frequency shifts in the LPTF optically pumped primary frequency standard

André Clairon, Giovanni D. Rovera, E. de Clercq, 1994 .

Design of an Optically Pumped Cs Laboratory Frequency Standard

André Clairon, A. Clairon, E. Clercq, 1989 .

Evaluation of the accuracy of the optically pumped caesium beam primary frequency standard of BNM-LPTF

A. Makdissi, E. de Clercq, 2001 .