@article{NUMA_1974__22_132266,
     author = {D. Braess},
     title = {Rationale {Interpolation,} {Normalit\"at} und {Monosplines.}},
     journal = {Numerische Mathematik},
     pages = {219--232},
     publisher = {mathdoc},
     volume = {22},
     year = {1974},
     zbl = {0281.65005},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1974__22_132266/}
}