@article{10_4064_fm_50_4_413_418,
     author = {J. Nov\'ak},
     title = {On the classification of {\ensuremath{\sigma}(B)-measurable} functions defined on an abstract point set},
     journal = {Fundamenta Mathematicae},
     pages = {413--418},
     publisher = {mathdoc},
     volume = {50},
     number = {4},
     year = {1961},
     doi = {10.4064/fm-50-4-413-418},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-50-4-413-418/}
}