@article{AUCMP_1996__37_2_a7,
     author = {Ponomarev, S. P.},
     title = {On some descriptive characterizations of the $n^{-1}$-property},
     journal = {Acta Universitatis Carolinae. Mathematica et Physica},
     pages = {65--69},
     publisher = {mathdoc},
     volume = {37},
     number = {2},
     year = {1996},
     mrnumber = {1600465},
     zbl = {0891.26007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AUCMP_1996__37_2_a7/}
}