@article{SM_2014_205_6_a4,
     author = {A. I. Dvirnyj and V. I. Slyn'ko},
     title = {Investigating stability using nonlinear quasihomogeneous approximation to differential equations with impulsive action},
     journal = {Sbornik. Mathematics},
     pages = {862--891},
     publisher = {mathdoc},
     volume = {205},
     number = {6},
     year = {2014},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2014_205_6_a4/}
}