@article{MABA_2006_20_3-4_a6,
     author = {M. M. Choban and D. N. Afanas},
     title = {Spaces and {Sequences}},
     journal = {Mathematica balkanica},
     pages = {333},
     publisher = {mathdoc},
     volume = {20},
     number = {3-4},
     year = {2006},
     url = {http://geodesic.mathdoc.fr/item/MABA_2006_20_3-4_a6/}
}