@article{NUMA_1980__36_132695,
     author = {K. Scherer},
     title = {On {Optimal} {Global} {Error} {Bounds} {Obtained} by {Scaled} {Local} {Error} {Estimates.}},
     journal = {Numerische Mathematik},
     pages = {151--176},
     publisher = {mathdoc},
     volume = {36},
     year = {1980},
     zbl = {0495.65006},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1980__36_132695/}
}