@article{10_4064_am_11_2_151_172,
     author = {W. Oktaba and H. Mikos},
     title = {Modele matematyczne dla danych proporcjonalnych},
     journal = {Applicationes Mathematicae},
     pages = {151--172},
     publisher = {mathdoc},
     volume = {11},
     number = {2},
     year = {1969},
     doi = {10.4064/am-11-2-151-172},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am-11-2-151-172/}
}