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@article{PORMA_1995__52_3_47687, author = {Rostami, M.}, title = {A topology with order, graph and an enumeration problem.}, journal = {Portugaliae mathematica}, pages = {337--342}, publisher = {mathdoc}, volume = {52}, number = {3}, year = {1995}, zbl = {0869.54041}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PORMA_1995__52_3_47687/} }
Rostami, M. A topology with order, graph and an enumeration problem.. Portugaliae mathematica, Tome 52 (1995) no. 3, pp. 337-342. http://geodesic.mathdoc.fr/item/PORMA_1995__52_3_47687/