@article{MZM_1989_46_1_a7,
     author = {V. S. Samovol},
     title = {A necessary and sufficient condition of smooth linearization of autonomous planar systems in a neighborhood of a critical point},
     journal = {Matemati\v{c}eskie zametki},
     pages = {67--77},
     publisher = {mathdoc},
     volume = {46},
     number = {1},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1989_46_1_a7/}
}