-凯发平台

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110|  |▼aaza    0uu0
200|10|▼ajournal of combinatorial the-
   |  |ory,series a
207| 0|▼av.10 (1971)-
210|  |▼anew york, n.y.▼cacademic press
431|  |▼12001▼a0021-9800
530|0 |▼ajournal of combinatorial the-
   |  |ory. series a
531|  |▼aj. comb. theory, ser. a
541|1 |▼a（美）组合理论杂志．a辑
690|  |▼ao157
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