By Shevchenko I.I.   in Journal of Symbolic Computation

ISSN:0747-7171|24|1|103-111

Academic Press‎(1997)‎

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By Orlov V. V.   Rubinov A. V.   Shevchenko I. I.   in Monthly Notices of the Royal Astronomical Society

ISSN:0035-8711|408|3|1623-1627

Oxford University Press‎(2010)‎

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