@article{PMF_1917_28_1_a8,
     author = {Hamburger, M. and Dickstein, S.},
     title = {O rozwi\k{a}zaniach osobliwych r\'owna\'n r\'o\.zniczkowych algebraicznych rz\k{e}du pierwszego},
     journal = {Prace Matematyczno-Fizyczne},
     pages = {151--193},
     publisher = {mathdoc},
     volume = {28},
     number = {1},
     year = {1917},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/item/PMF_1917_28_1_a8/}
}