@article{PORMA_1992__49_1_115780,
     author = {Macho Stadler, M. and Prada Vicente, M.A. de},
     title = {$t^*${-Fuzzy} topological concepts},
     journal = {Portugaliae mathematica},
     pages = {85--108},
     publisher = {mathdoc},
     volume = {49},
     number = {1},
     year = {1992},
     mrnumber = {1165924},
     zbl = {0788.54009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1992__49_1_115780/}
}