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// Izvestiya Vysshikh Uchebnykh Zavedenii. Matematika
// Archive
Izv. Vyssh. Uchebn. Zaved. Mat.,
1959
Number 2,
Page 275
(Mi ivm2587)
Letter to the editors
A. D. Lyashko
©
Steklov Math. Inst. of RAS
, 2025
