@article{10_4064_ap102_2_4,
     author = {Mami Suzuki},
     title = {Analytic solutions of a nonlinear two variables difference system whose 
eigenvalues are both 1},
     journal = {Annales Polonici Mathematici},
     pages = {143--159},
     publisher = {mathdoc},
     volume = {102},
     number = {2},
     year = {2011},
     doi = {10.4064/ap102-2-4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap102-2-4/}
}