@article{10_4064_am_4_3_195_203,
     author = {E. Marczewski},
     title = {O odleg{\l}o\'sci systematycznej biotop\'ow},
     journal = {Applicationes Mathematicae},
     pages = {195--203},
     publisher = {mathdoc},
     volume = {4},
     number = {3},
     year = {1959},
     doi = {10.4064/am-4-3-195-203},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am-4-3-195-203/}
}