@article{EJDE_2011__2011__a86,
     author = {Ignatyev, Alexander O. and Ignatyev, Oleksiy},
     title = {Quadratic forms as {Lyapunov} functions in the study of stability of solutions to difference equations},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {2011},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2011__2011__a86/}
}