Hydrogen emission line n110 → n109 : detection at 5009 Megahertz in galactic H II regions /

by Höglund, B., Mezger, Peter G., 1928-2014
Published 1965

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

by Roberts, Morton S.
Published 1966

Estimates of pulsar distances from neutral hydrogen absorption /

by Gordon, Courtney P., Gordon, Kurtiss J., 1940-2008, Shalloway, Arthur M.
Published 1969

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

by Roberts, Morton S.
Published 1974

On the discontinuities of the distribution of masses and hydrogen-content in the Hertzsprung-Russell diagram /

by Opolski, Antoni, 1913-2014
Published 1950

Condensation of solid hydrogen in contracting interstellar clouds /

by Nakano, Takenori
Published 1971

The hydrogen to helium ratio in HD 96446 /

by Cowley, Anne, Aller, Lawrence H. 1913-2003, Dunham, Theodore, jr.
Published 1963

The helium to hydrogen ratio in the Small Magellanic Cloud /

by Aller, Lawrence H. 1913-2003, Faulkner, D. J.
Published 1962

Further measurements of magnetic fields in interstellar clouds of neutral hydrogen /

by Verschuur, Gerrit L., 1937-
Published 1969