%0 Journal Article %A A. Schinzel %A M. SkaƂba %T On Equations $y^2=x^n+k$ in a Finite Field %J Bulletin of the Polish Academy of Sciences. Mathematics %D 2004 %P 223-226 %V 52 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ba52-3-1/ %R 10.4064/ba52-3-1 %G en %F 10_4064_ba52_3_1