Kay, D. C.; Chartrand, G. A characterization of certain ptolemaic graphs. (English) Zbl 0139.17301 Can. J. Math. 17, 342-346 (1965). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 22 Documents Keywords:topology PDF BibTeX XML Cite \textit{D. C. Kay} and \textit{G. Chartrand}, Can. J. Math. 17, 342--346 (1965; Zbl 0139.17301) Full Text: DOI