@article{RM_2010_65_3_a8,
     author = {I. S. Tyurin},
     title = {Refinement of the upper bounds of the constants in {Lyapunov's} theorem},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {586--588},
     publisher = {mathdoc},
     volume = {65},
     number = {3},
     year = {2010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_2010_65_3_a8/}
}