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Rousseau, R.: Robert Fairthorne and the empirical power laws (2005)
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Fairthorne, R.A.: Empirical hyperbolic distributions (Bradford-Zipf-Mandelbrot) for bibliometric description and prediction (2005)
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Wagner-Döbler, R.: Time dependencies of Bradford distributions : structures of journal output in 20th century logic and 19the century mathematics (1997)
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Heine, M.M.: Bradford ranking conventions and their application to a growing literature (1998)
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Richmond, P.A.: Classification from PRECIS : some possibilities (1976)
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