@article{NUMA_1984__44_132935,
     author = {C. Palencia and J.M. Sanz-Serna},
     title = {An {Extension} of the {Lax-Richtmyer} {Theory.}},
     journal = {Numerische Mathematik},
     pages = {279--284},
     publisher = {mathdoc},
     volume = {44},
     year = {1984},
     zbl = {0523.65067},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1984__44_132935/}
}