@article{10_4064_ba52_3_1,
     author = {A. Schinzel and M. Ska{\l}ba},
     title = {On {Equations} $y^2=x^n+k$ in a {Finite} {Field}},
     journal = {Bulletin of the Polish Academy of Sciences. Mathematics},
     pages = {223--226},
     publisher = {mathdoc},
     volume = {52},
     number = {3},
     year = {2004},
     doi = {10.4064/ba52-3-1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ba52-3-1/}
}