MathSciNet bibliographic data MR1278767 (95d:11130) 11N64 (11N56) Balog, A.; Pelikán, J.; Pintz, J.; Szemerédi, E. Difference sets without $\kappa$$\kappa$th powers. Acta Math. Hungar. 65 (1994), no. 2, 165–187. Article

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