328 citations · 330 across the 2 of their papers we have counts for
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astro-ph1999
On the radio spectral index of galaxies
U. Lisenfeld, H. J. Voelk
The radio emission of a galaxy consists of thermal bremsstrahlung, synchrotron emission from discrete supernova remnants, and diffuse synchrotron emission from cosmic ray electrons…
astro-ph1999
The Diffuse Galactic Gamma-Ray Gradient
D. Breitschwerdt, V. Dogiel, H. J. V"olk
One of the unsolved problems in cosmic ray (CR) physics is the small radial gradient of the gamma-ray intensity compared to the inferred CR source distribution in the Galactic disk…