@article{NUMA_1990__57_6-7_133480,
     author = {Klaus-J. F\"orster and Knut Petras},
     title = {On a {Problem} {Proposed} by {H.} {Bra{\ss}} {Concerning} the {Remainder} {Term} in {Quadrature} for {Convex} {Functions.}},
     journal = {Numerische Mathematik},
     pages = {763--778},
     publisher = {mathdoc},
     volume = {57},
     number = {6-7},
     year = {1990},
     zbl = {0733.41031},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1990__57_6-7_133480/}
}