Não informado. (1988). SIAM Journal on Discrete Mathematics. Society for Industrial and Applied Mathematics.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. SIAM Journal on Discrete Mathematics. Philadelphia, Pa: Society for Industrial and Applied Mathematics, 1988.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. SIAM Journal on Discrete Mathematics. Society for Industrial and Applied Mathematics, 1988.
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