@article{EJDE_2007__2007__a144,
     author = {Boumaza, Hakim and Stolz, G\"unter},
     title = {Positivity of {Lyapunov} exponents for {Anderson-type} models on two coupled strings},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {2007},
     year = {2007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2007__2007__a144/}
}