@article{NUMA_1968__12_131842,
     author = {U. ECKHARDT},
     title = {Einige {Eigenschaften} {Wilfscher} {Quadraturformeln.}},
     journal = {Numerische Mathematik},
     pages = {1--7},
     publisher = {mathdoc},
     volume = {12},
     year = {1968},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1968__12_131842/}
}