@article{PMF_1893_4_1_a5,
     author = {Jab{\l}o\'nski, E.},
     title = {Teorya przemian i waryacyj ko{\l}owych zupe{\l}nych},
     journal = {Prace Matematyczno-Fizyczne},
     pages = {71--87},
     publisher = {mathdoc},
     volume = {4},
     number = {1},
     year = {1893},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/item/PMF_1893_4_1_a5/}
}