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@article{PORMA_1988__45_4_115638, author = {Craveiro de Carvalho, F.J. and Robertson, S.A.}, title = {A note on equichordal graphs}, journal = {Portugaliae mathematica}, pages = {363--368}, publisher = {mathdoc}, volume = {45}, number = {4}, year = {1988}, mrnumber = {0982905}, zbl = {0664.53026}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PORMA_1988__45_4_115638/} }
Craveiro de Carvalho, F.J.; Robertson, S.A. A note on equichordal graphs. Portugaliae mathematica, Tome 45 (1988) no. 4, pp. 363-368. http://geodesic.mathdoc.fr/item/PORMA_1988__45_4_115638/