On the Gracefulness of the Digraph P~a~, ~b

Bibliographic Details
Title: On the Gracefulness of the Digraph P~a~, ~b
Authors: Lingqi, Zhao, Yuansheng, Yang, Wei, Feng, Yuan, Ren, jingjing, Bao
Source: Utilitas mathematica. 101:37-44
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Database: British Library Document Supply Centre Inside Serials & Conference Proceedings
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ISSN:03153681
Published in:Utilitas mathematica
Language:English