@article{VCHGU_2012_15_a4,
     author = {I. V. Korovina},
     title = {Normal forms of multidimesional parabolic mappings},
     journal = {Vestnik Chelyabinskogo Gosudarstvennogo Universiteta. Matematika, Mekhanika, Informatika},
     pages = {71--79},
     publisher = {mathdoc},
     number = {15},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VCHGU_2012_15_a4/}
}