@article{TIMM_2010_16_1_a2,
     author = {A. V. Arutyunov},
     title = {On implicit function theorems at abnormal points},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {30--39},
     publisher = {mathdoc},
     volume = {16},
     number = {1},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2010_16_1_a2/}
}