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' 1968 Nature Publishing Group

Is the Probability of Occurrence of Absorption Lines in QSOs a Function of Red-shift?

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Page 1: Is the Probability of Occurrence of Absorption Lines in QSOs a Function of Red-shift?

© 1968 Nature Publishing Group

Page 2: Is the Probability of Occurrence of Absorption Lines in QSOs a Function of Red-shift?

© 1968 Nature Publishing Group