@article{10_4064_am_12_1_1_21,
     author = {R. Bartoszy\'nski},
     title = {On the construction and evaluation of subjective classifications},
     journal = {Applicationes Mathematicae},
     pages = {1--21},
     publisher = {mathdoc},
     volume = {12},
     number = {1},
     year = {1971},
     doi = {10.4064/am-12-1-1-21},
     zbl = {0218.68026},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am-12-1-1-21/}
}