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Scientific notes and problems
A new proximity invariant
E. S. Tikhomirova
Received: 14.02.1957
Citation:
E. S. Tikhomirova, “A new proximity invariant”, Russian Math. Surveys, 13:5 (1958)
Linking options:
https://www.mathnet.ru/eng/rm7475 https://www.mathnet.ru/eng/rm/v13/i5/p197
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