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// Izvestiya Vysshikh Uchebnykh Zavedenii. Matematika
// Archive
Izv. Vyssh. Uchebn. Zaved. Mat.,
1968
Number 3,
Pages
80–85
(Mi ivm3291)
Comparison of the strength of certain
$\Delta\Sigma$
-operations in connection with the generalization of certain multiple separability theorems.
Yu. I. Romanov
Volgograd
UDC:
519.50
Received:
19.08.1966
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Steklov Math. Inst. of RAS
, 2025