%0 Journal Article %A K. Inkeri %T On Catalan's problem %J Acta Arithmetica %D 1964 %P 285-290 %V 9 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-9-3-285-290/ %R 10.4064/aa-9-3-285-290 %G de %F 10_4064_aa_9_3_285_290