@article{TM_2018_303_a4,
     author = {M. R. Gabdullin},
     title = {Estimates for character sums in finite fields of order $p^2$ and $p^3$},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {45--58},
     publisher = {mathdoc},
     volume = {303},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_2018_303_a4/}
}