@article{NUMA_1976__27_132465,
     author = {E. Pallaschke},
     title = {Konvergenz optimaler {Differentiationsformeln.}},
     journal = {Numerische Mathematik},
     pages = {421--426},
     publisher = {mathdoc},
     volume = {27},
     year = {1976},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1976__27_132465/}
}