By Papadakis M.   Stavropoulos T.   Kalouptsidis N.   in Applied and Computational Harmonic Analysis

ISSN:1063-5203|3|4|366-371

Academic Press‎(1996)‎

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By Sweet R.   Viehoff I.   Linardatos D.   Kalouptsidis N.   in Information Economics and Policy

ISSN:0167-6245|14|3|371-384

Elsevier‎(2002)‎

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