@book{cbdu5110,
           title = {Pie{\'s}{\'n} o obl{\k e}{\.z}eniu Jasnej G{\'o}ry Cz{\k e}stochowskiej},
          number = {511},
         address = {[B. m. dr.]},
             url = {http://cbdu.ijp.pan.pl/id/eprint/5110/},
        abstract = {Zawiera te{\.z}: ?PIESN O NASWIETSZEY PANNIE MARYEY?}
}