@article{PMF_1903_14_1_a2,
     author = {Rajewski, J.},
     title = {O szeregach i iloczynach warunkowo zbie\.znych},
     journal = {Prace Matematyczno-Fizyczne},
     pages = {79--104},
     publisher = {mathdoc},
     volume = {14},
     number = {1},
     year = {1903},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/item/PMF_1903_14_1_a2/}
}