@article{10_4064_am_4_3_244_248,
     author = {S. Trybu{\l}a},
     title = {Ocena frekwencji w populacji element\'ow nale\.z\k{a}cych do klas niereprezentowanych w pr\'obce},
     journal = {Applicationes Mathematicae},
     pages = {244--248},
     publisher = {mathdoc},
     volume = {4},
     number = {3},
     year = {1959},
     doi = {10.4064/am-4-3-244-248},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am-4-3-244-248/}
}