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Found 185 Documents (Results 1–3)

Vestn. St. Petersbg. Univ., Math. 50, No. 2, 117-121 (2017); translation from Vestn. St-Peterbg. Univ., Ser. I, Mat. Mekh. Astron. 4(62), No. 2, 201-207 (2017).
MSC:  11S31 11S70
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Vestn. St. Petersbg. Univ., Math. 49, No. 4, 320-324 (2016); translation from Vestn. St-Peterbg. Univ., Ser. I, Mat. Mekh. Astron. 2016, No. 4, 552-557 (2016).
MSC:  11S31 11S70
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