Não informado. (1950). Matrix and Tensor Quarterly. Tensor Society of Great Britain.
Lua i Stíl Chicago (17ú heag.)Não informado. Matrix and Tensor Quarterly. London: Tensor Society of Great Britain, 1950.
Lua MLA (8ú heag.)Não informado. Matrix and Tensor Quarterly. Tensor Society of Great Britain, 1950.
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