@article{EXMATH_1997_1997_1_a4,
     author = {Stempak, Krzysztof},
     title = {Nota sobre los espacios {Zemanianos.}},
     journal = {Extracta mathematicae},
     pages = {33-40},
     publisher = {mathdoc},
     volume = {12},
     number = {1},
     year = {1997},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EXMATH_1997_1997_1_a4/}
}