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JOURNALS
// Doklady Akademii Nauk
// Archive
Dokl. Akad. Nauk SSSR,
1957
Volume 115,
Number 5,
Pages
866–868
(Mi dan22260)
This article is cited in
1
paper
MATHEMATICS
Certain special classes of topological spaces and
$\delta s$
-operations
I. I. Parovichenko
Kishinev State University
Presented:
P. S. Aleksandrov
Received: 12.03.1957
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