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"On the Delta-subgraph of graphs which are critical with respect to the ..."
Amanda G. Chetwynd, Anthony J. W. Hilton, Dean G. Hoffman (1989)
- Amanda G. Chetwynd
, Anthony J. W. Hilton, Dean G. Hoffman:
On the Delta-subgraph of graphs which are critical with respect to the chromatic index. J. Comb. Theory B 46(2): 240-245 (1989)

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