%0 Journal Article %A Christian Ballot %A Florian Luca %T On the equation $x^2+dy^2=F_n$ %J Acta Arithmetica %D 2007 %P 145-155 %V 127 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa127-2-4/ %R 10.4064/aa127-2-4 %G en %F 10_4064_aa127_2_4