@article{10_14708_wm_v7i2_2359,
     author = {A. Schinzel and W. Sierpi\'nski},
     title = {O r\'ownaniu x2 -2y2 = k},
     journal = {Wiadomo\'sci Matematyczne},
     pages = { 229--232},
     publisher = {mathdoc},
     volume = {7},
     number = {2},
     year = {1964},
     doi = {10.14708/wm.v7i2.2359},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/wm.v7i2.2359/}
}