G. U. Nystrom

Test of relativistic gravitation with a space-borne hydrogen maser

R. Decher, C. R. Baugher, T. E. Hoffman, 1980 .

The Ultraviolet Coronagraph Spectrometer for the solar and heliospheric observatory

P. Nicolosi, G. Naletto, J. G. Timothy, 1995 .