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Discrete Mathematics > 2007 > 307 > 9-10 > 1185-1190
Discrete Mathematics > 2005 > 294 > 3 > 259-274
Annals of Combinatorics > 2004 > 8 > 3 > 347-353
Discrete Mathematics > 2007 > 307 > 9-10 > 1185-1190
Discrete Mathematics > 2005 > 294 > 3 > 259-274
Annals of Combinatorics > 2004 > 8 > 3 > 347-353