@article{NUMA_1985__47_133024,
     author = {A.G. Werschulz and M.A. Kowalski},
     title = {Is {Gauss} {Quadrature} {Optimal} for {Analytic} {Functions?}},
     journal = {Numerische Mathematik},
     pages = {89--98},
     publisher = {mathdoc},
     volume = {47},
     year = {1985},
     zbl = {0572.41017},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1985__47_133024/}
}