On the decidability of integer subgraph problems on context-free graph languages
1991 ◽
pp. 415-426
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Keyword(s):
1997 ◽
Vol 55
(3)
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pp. 489-503
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1996 ◽
Vol 53
(3)
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pp. 556-574
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1994 ◽
Vol 49
(1)
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pp. 57-82