@article{PMF_1911_22_1_a4,
     author = {Sierpi\'nski, Wac{\l}aw},
     title = {Dow\'od elementarny twierdzenia {Weierstrassa} i wzoru interpolacyjnego {Borela}},
     journal = {Prace Matematyczno-Fizyczne},
     pages = {59--68},
     publisher = {mathdoc},
     volume = {22},
     number = {1},
     year = {1911},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/item/PMF_1911_22_1_a4/}
}