HEA|  |00701nam0 2200217   45  
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011|  |▼a0022-4049
092|  |▼aCN▼b513LB002
100|  |▼a19970603a19719999k                ba
101|0 |▼aeng
102|  |▼aNLD
110|  |▼aafa    0   
200|10|▼aJournal of pure and applied algebra
207| 0|▼av.1(1971)-
210|  |▼aAmsterdam▼cNorth-Holland
541|1 |▼a(荷)理论代数与应用代数杂志
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