@article{PMF_1895_6_1_a0,
     author = {Puzyna, J.},
     title = {O nier\'owno\'sci $g \ensuremath{\geqq} |a_0|$},
     journal = {Prace Matematyczno-Fizyczne},
     pages = {1--4},
     publisher = {mathdoc},
     volume = {6},
     number = {1},
     year = {1895},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/item/PMF_1895_6_1_a0/}
}