@article{UFA_2017_9_3_a2,
     author = {G. G. Braichev},
     title = {Two-sided estimates for the relative growth of functions and their derivatives},
     journal = {Ufa mathematical journal},
     pages = {18--25},
     year = {2017},
     volume = {9},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UFA_2017_9_3_a2/}
}