@article{PMF_1890_2_1_a12,
     author = {Ciemniewski, M.},
     title = {Z dziedziny rachunku ca{\l}kowego},
     journal = {Prace Matematyczno-Fizyczne},
     pages = {228--242},
     publisher = {mathdoc},
     volume = {2},
     number = {1},
     year = {1890},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/item/PMF_1890_2_1_a12/}
}