@article{NUMA_1977__28_132498,
     author = {W. Hackbusch},
     title = {Extrapolation to the {Limit} for {Numerical} {Solutions} of {Hyperbolic} {Equations.}},
     journal = {Numerische Mathematik},
     pages = {455--474},
     publisher = {mathdoc},
     volume = {28},
     year = {1977},
     zbl = {0348.65086},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1977__28_132498/}
}