https://catalogue-scientifique.canada.ca/record=2338958~S6*frc
Rechercher Vessot, R. F; Rechercher Mattison, E. M; Rechercher Klepczynski, W. J; Rechercher Silvera, I. F; Rechercher Godfried, H. P; Rechercher Walsworth, Jr, R. L
naval observatory washington dc, 1985
Two SAO VLC-11 hydrogen masers have been in service at the U.S. Naval Observatory in September 1983. The systematic frequency drifts have been measured against...
Publication gouvernementale