@article{MZM_1998_63_4_a9,
     author = {L. G. Kurakin},
     title = {Critical cases of stability. {Converse} implicit function theorem for dynamical systems with cosymmetry},
     journal = {Matemati\v{c}eskie zametki},
     pages = {572--578},
     publisher = {mathdoc},
     volume = {63},
     number = {4},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1998_63_4_a9/}
}