LowerE-region ion concentrations measured at a time of declining solar activity

Mass spectrometric measurements of positive ions at altitudes from 64 to 112 kilometers

1965 • 378 citations

The formation of theDregion of the ionosphere

1960 • 310 citations

Positive ion composition in the magnetoionosphere obtained from the Ogo-A satellite

1965 • 152 citations

Radiofrequency Mass Spectrometer

1950 • 137 citations

Ionospheric processes and nitric oxide

1965 • 88 citations

Ionospheric reaction rates in the light of recent measurements in the ionosphere and the laboratory

1966 • 78 citations

Ionospheric composition and density from 90 to 1200 kilometers at solar minimum

1966 • 76 citations

Direct measurements of helium and hydrogen ion concentration and total ion density to an altitude of 940 kilometers

1963 • 63 citations

Lower ionosphere at solar minimum

1966 • 56 citations

Laboratory measurement of the rate of the reaction N2+ + O → NO+ + N at thermal energy

1965 • 55 citations

Laboratory measurement of the rate of the reaction O+ + O2 → O2+ + O at thermal energy

1965 • 50 citations

On the ionospheric conditions in theDregion and lowerEregion

1966 • 45 citations

Atmospheric ion composition measured above Wallops Island, Virginia

1961 • 44 citations

Ionospheric research from space vehicles

1963 • 43 citations

Correction in the laboratory measurement of the rate constant for N2+ + O2 → N2 + O2+ at 300°K

1965 • 30 citations

Direct Measurements of Helium and Hydrogen Ion Concentration and Total Ion Density to an Altitude of 940 Kilometers

1963 • 28 citations

A model of the atmosphere and ionosphere in the E and F1 regions

1963 • 21 citations

Ions of Extra-Terrestrial Origin in the Earth Ionosphere

1963 • 19 citations

Metallic Emissions from the Upper Atmosphere

1964 • 15 citations

Absolute concentrations of ion components of the earth's atmosphere at altitudes between 100 and 200 km

1963 • 9 citations

The Encyclopedia of Spectroscopy.

1961 • 7 citations

MASS SPECTROMETRY IN THE D-REGION IONOSPHERE, APPARATUS, TECHNIQUES, AND FIRST MEASUREMENTS,

1965 • 4 citations