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JOURNALS
// Doklady Akademii Nauk
// Archive
Dokl. Akad. Nauk SSSR,
1968
Volume 180,
Number 2,
Pages
269–272
(Mi dan33839)
MATHEMATICS
The structure of certain complete surfaces of non-positive curvature
A. L. Verner
A. I. Hertsen Leningrad Pedagogical Institute
UDC:
513
Presented:
A. D. Aleksandrov
Received: 31.05.1967
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Steklov Math. Inst. of RAS
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