%0 Journal Article %A Florian Luca %T The diophantine equation $x^2=p^a\pm p^b+1$ %J Acta Arithmetica %D 2004 %P 87-101 %V 112 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa112-1-6/ %R 10.4064/aa112-1-6 %G en %F 10_4064_aa112_1_6