https://catalogue-scientifique.canada.ca/record=2189523~S6*frc
Rechercher Zacharias, N; Rechercher Zacharias, M. I; Rechercher Boboltz, D; Rechercher Fey, A; Rechercher Gaume, R; Rechercher Hennessy, G. S; Rechercher Johnston, K. J; Rechercher Ojha, R
naval observatory washington dc, 2007
Over 500 counterparts of International Celestial Reference Frame (ICRF) sources were observed during 24 deep CCD observing runs as part of the USNO CCD...
Publication gouvernementale