@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},
     year = {1995},
     volume = {52},
     number = {3},
     zbl = {0869.54041},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1995__52_3_47687/}
}