@article{MASLO_1979__29_2_a7,
     author = {\v{S}abo, Michal},
     title = {Classification and extension by the transfinite induction},
     journal = {Mathematica slovaca},
     pages = {169--176},
     publisher = {mathdoc},
     volume = {29},
     number = {2},
     year = {1979},
     mrnumber = {578289},
     zbl = {0432.04004},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1979__29_2_a7/}
}