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Scientific notes and problems
On coverings of spheres
I. I. Gordon
Received: 15.05.1953
Citation:
I. I. Gordon, “On coverings of spheres”, Russian Math. Surveys, 8:5 (1953)
Linking options:
https://www.mathnet.ru/eng/rm8247 https://www.mathnet.ru/eng/rm/v8/i5/p147
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