@article{NUMA_1990__58_5_133497,
     author = {J.M. Sanz-Serna and T. Ortega},
     title = {Nonlinear stability and convergence of finite-differnce methods for the },
     journal = {Numerische Mathematik},
     pages = {215--230},
     publisher = {mathdoc},
     volume = {58},
     number = {5},
     year = {1990},
     zbl = {0749.65082},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1990__58_5_133497/}
}