@article{NUMA_1987__52_5_133237,
     author = {R. Jeltsch and P. Kiani and K. Raczek},
     title = {Counterexample to a {Stability} {Barrier.}},
     journal = {Numerische Mathematik},
     pages = {301--316},
     publisher = {mathdoc},
     volume = {52},
     number = {5},
     year = {1987},
     zbl = {0683.65076},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1987__52_5_133237/}
}