@article{PMF_1908_19_1_a6,
     author = {Zaremba, S.},
     title = {O zasadzie {Dirichleta}},
     journal = {Prace Matematyczno-Fizyczne},
     pages = {123--129},
     publisher = {mathdoc},
     volume = {19},
     number = {1},
     year = {1908},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/item/PMF_1908_19_1_a6/}
}