Author:
Savka I. Ya.,Tymkiv I. R.
Publisher
National Academy of Sciences of Ukraine (Co. LTD Ukrinformnauka) (Publications)
Reference33 articles.
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2. English translation: Ukr. Math. J., 51, No. 10, 1476-1483 (1999), https://doi.org/10.1007/BF02981680
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