@article{NUMA_1990__58_5_133509,
     author = {Daniele Funaro and Wilhelm Heinrichs},
     title = {Some results about the pseudospectral approximation of one-dimensional fourth-order problems.},
     journal = {Numerische Mathematik},
     pages = {399--418},
     publisher = {mathdoc},
     volume = {58},
     number = {5},
     year = {1990},
     zbl = {0714.65074},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1990__58_5_133509/}
}