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On the closed graph theorem
V. Pták
Citation:
V. Pták, “On the closed graph theorem”, Matematika, 4:6 (1960), 69–72; Czechoslovak Math. J., 9 (1959), 523–527
Linking options:
https://www.mathnet.ru/eng/mat163 https://www.mathnet.ru/eng/mat/v4/i6/p69
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