Black Holes and the Universe.
By Igor Novikov. Cambridge University Press: 1990. Pp.176. Hbk £25, $39.50; pbk £8.95, $14.95.
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Friedman, J. Inscrutable matter. Nature 350, 119 (1991). https://doi.org/10.1038/350119a0
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DOI: https://doi.org/10.1038/350119a0