@article{MZM_2010_88_6_a5,
     author = {E. A. Grechnikov},
     title = {An {Estimate} for the {Sum} of {Legendre} {Symbols}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {859--866},
     publisher = {mathdoc},
     volume = {88},
     number = {6},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2010_88_6_a5/}
}