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Harary, Frank; Jacobson, Michael S.; Kubicka, Ewa; Kubicki, Grzegorz; Oellermann, Ortrud R. The irregularity cost or sum of a graph. (English) Zbl 0780.05052 Appl. Math. Lett. 6, No. 3, 79-80 (1993). Reviewer: L.Lesniak Foster (Madison) MSC: 05C99 PDFBibTeX XMLCite \textit{F. Harary} et al., Appl. Math. Lett. 6, No. 3, 79--80 (1993; Zbl 0780.05052) Full Text: DOI
Chartrand, Gary; Harary, Frank; Oellermann, Ortrud R. On the regulation number of a multigraph. (English) Zbl 0582.05036 Graphs Comb. 1, 137-144 (1985). Reviewer: J.Plesník MSC: 05C35 PDFBibTeX XMLCite \textit{G. Chartrand} et al., Graphs Comb. 1, 137--144 (1985; Zbl 0582.05036) Full Text: DOI