@article{10_4064_aa121_2_4,
     author = {Zhefeng Xu and Wenpeng Zhang},
     title = {On the $2k$th power mean of the character sums
 over short intervals},
     journal = {Acta Arithmetica},
     pages = {149--160},
     publisher = {mathdoc},
     volume = {121},
     number = {2},
     year = {2006},
     doi = {10.4064/aa121-2-4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa121-2-4/}
}