A. S. Kovan'ko, “Mathematical Competitions in Lvov in 1946, 1947”, Uspekhi Mat. Nauk, 1949, Volume 4, Issue 2(30),Pages <nobr>209

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Uspekhi Mat. Nauk, 1949 Volume 4, Issue 2(30), Pages 209–210 (Mi rm8614)

Mathematical Events in the USSR

Mathematical Competitions in Lvov in 1946, 1947

A. S. Kovan'ko