%0 Journal Article %A Grigori Kolesnik %T Estimation of some exponential sums containing the fractional part function and some other “non-standard" exponential sums %J Acta Arithmetica %D 2003 %P 315-326 %V 108 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa108-4-2/ %R 10.4064/aa108-4-2 %G en %F 10_4064_aa108_4_2