@article{IM2_2014_78_2_a0,
     author = {E. R. Avakov and A. V. Arutyunov and D. Yu. Karamzin},
     title = {An investigation of smooth maps in a~neighbourhood of an abnormal point},
     journal = {Izvestiya. Mathematics },
     pages = {213--250},
     publisher = {mathdoc},
     volume = {78},
     number = {2},
     year = {2014},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2014_78_2_a0/}
}