%0 Journal Article %A Jan Turk %T On the difference between perfect powers %J Acta Arithmetica %D 1985 %P 289-307 %V 45 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-45-4-289-307/ %R 10.4064/aa-45-4-289-307 %G en %F 10_4064_aa_45_4_289_307