@article{RCM_1990__24_3-4_181833,
     author = {Victor S. Albis and Sonia Sobogal},
     title = {Separation properties and n-point topological extensions},
     journal = {Revista colombiana de matematicas},
     pages = {65--80},
     publisher = {mathdoc},
     volume = {24},
     number = {3-4},
     year = {1990},
     zbl = {0723.54028},
     url = {http://geodesic.mathdoc.fr/item/RCM_1990__24_3-4_181833/}
}