%0 Journal Article %A Jerzy Urbanowicz %T On the equation $f(1)1^k + f(2)2^k + ... + f(x)x^k + R(x)= by^z$ %J Acta Arithmetica %D 1988 %P 349-368 %V 51 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-51-4-349-368/ %R 10.4064/aa-51-4-349-368 %G en %F 10_4064_aa_51_4_349_368