@article{10_14708_ma_v5i9_1211,
     author = {R. Bartoszy\'nski},
     title = {On a scheme for subjective classifications in the case of variable sample probabilities},
     journal = {Mathematica Applicanda},
     pages = { 35--43},
     publisher = {mathdoc},
     volume = {5},
     number = {9},
     year = {1977},
     doi = {10.14708/ma.v5i9.1211},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/ma.v5i9.1211/}
}