Recent discoveries in radio astronomy /

Autor Roberts, Morton S.
Vydáno 1965

Upper limit to the neutral hydrogen density in the halo regions of spiral galaxies /

Autor Roberts, Morton S.
Vydáno 1966

Interstellar hydrogen in galaxies : radio observations of neutral hydrogen yield valuable information on the properties of galaxies /

Autor Roberts, Morton S.
Vydáno 1974

Observations of the Andromeda galaxy at 11-centimeter wavelenght /

Autor Cooley, R. C., Roberts, Morton S., Swenson, G. W.
Vydáno 1967