@article{FAA_1970_4_3_a0,
     author = {V. I. Arnol'd},
     title = {Algebraic unsolvability of the problem of lyapunov stability and the problem of topological classification of singular points of an analytic system of differential equations},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {1--9},
     publisher = {mathdoc},
     volume = {4},
     number = {3},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1970_4_3_a0/}
}