%0 Journal Article %A J. Cohn %T The diophantine equation x² + C = yⁿ %J Acta Arithmetica %D 1993 %P 367-381 %V 65 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-65-4-367-381/ %R 10.4064/aa-65-4-367-381 %G en %F 10_4064_aa_65_4_367_381