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19962004
most citedDetection of Two Massive CO Systems in 4C 41.17 at z = 3.8

86 citations · 149 across the 4 of their papers we have counts for

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astro-ph1996

Spectroscopy of Ultra--Steep Spectrum Radio Sources: A Sample of z>2 Radio Galaxies

H. J. A. Röttgering, R. van Ojik, G. K. Miley +3

We present spectroscopic observations for 64 radio galaxies having ultra steep radio spectra. Twenty-nine objects have redshifts , the largest redshifts being almost 4. Our ul…