Abstract
For Lemaître type universes, the fraction of radio sources with two diametrically opposite images included in a survey to a given flux limit is calculated to be small, because of the recent origin of the sources and the inhomogeneous distribution of matter in the universe.
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PETROSIAN, V., EKERS, R. Search for Ghost Images: a Statistical Test. Nature 224, 484–488 (1969). https://doi.org/10.1038/224484a0
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DOI: https://doi.org/10.1038/224484a0
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