@article{10_4064_am_1_4_273_298,
     author = {A. Zi\k{e}ba},
     title = {Elementarna teoria po\'scigu},
     journal = {Applicationes Mathematicae},
     pages = {273--298},
     publisher = {mathdoc},
     volume = {1},
     number = {4},
     year = {1953},
     doi = {10.4064/am-1-4-273-298},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am-1-4-273-298/}
}