@article{SM_2009_200_2_a5,
     author = {V. E. Slyusarchuk},
     title = {Conditions for the invertibility of the nonlinear difference operator
},
     journal = {Sbornik. Mathematics},
     pages = {261--282},
     publisher = {mathdoc},
     volume = {200},
     number = {2},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2009_200_2_a5/}
}