@article{EMJ_2011_2_3_a7,
     author = {V. Tikhomirov and A. Kochurov},
     title = {Kolmogorov-type inequalities on the whole line or half line and the {Lagrange} principle in the theory of extremum problems},
     journal = {Eurasian mathematical journal},
     pages = {125--142},
     publisher = {mathdoc},
     volume = {2},
     number = {3},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EMJ_2011_2_3_a7/}
}