Não informado. (1958). Kyungpook Mathematical Journal. Kyungpook University.
Lua i Stíl Chicago (17ú heag.)Não informado. Kyungpook Mathematical Journal. Taegu, Korea: Kyungpook University, 1958.
Lua MLA (8ú heag.)Não informado. Kyungpook Mathematical Journal. Kyungpook University, 1958.
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