@article{TSP_2014_30_30_a17,
     author = {K. E. Shiryaev},
     title = {Central exponent of a system with unbounded coefficients},
     journal = {Trudy Seminara im. I.G. Petrovskogo},
     pages = {351--352},
     year = {2014},
     volume = {30},
     number = {30},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TSP_2014_30_30_a17/}
}