Não informado. (1977). Tsukuba Journal of Mathematics. University of Tsukuba, Institute of Mathematics.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Tsukuba Journal of Mathematics. Tsukuba, Japão: University of Tsukuba, Institute of Mathematics, 1977.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Tsukuba Journal of Mathematics. University of Tsukuba, Institute of Mathematics, 1977.
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