%0 Journal Article %A P. Walsh %T On integer solutions to x² - dy² = 1, z² - 2dy² =1 %J Acta Arithmetica %D 1997 %P 69-76 %V 82 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-82-1-69-76/ %R 10.4064/aa-82-1-69-76 %G en %F 10_4064_aa_82_1_69_76