@article{UMJ_2016_2_1_a0,
     author = {Alexander G. Babenko},
     title = {On an extremal problem for polynomials with fixed mean value},
     journal = {Ural mathematical journal},
     pages = {3--8},
     year = {2016},
     volume = {2},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UMJ_2016_2_1_a0/}
}