Physical Review Letters · 1961 · 41 citations · 8 references
Natural SciencesAstronomyPhysicsAstrophysicsCosmologyGamma-ray AstronomyExtragalactic Gamma-ray AstronomyGamma-ray DetectionGamma-ray SourcesGround-based Gamma-ray ObservatoriesHigh-energy Astrophysical SourcesHigh-energy AstrophysicsCosmic-ray-induced Gamma RaysGamma-ray Emission MechanismsHigh-energy Gamma-ray Astronomy
8
Soft Radiation at Balloon Altitudes
Charles L. Critchfield, E. P. Ney, Sophie Oleksa · Physical Review · 1952 · 53 citations
Search for Electrons in the Primary Cosmic Radiation
R. I. Hulsizer, Bruno Rossi · Physical Review · 1948 · 40 citations