@article{NUMA_1968__12_131884,
     author = {R.E. BARNHILL},
     title = {Asymptotic {Properties} of {Minimum} {Norm} and {Optimal} {Quadratures.}},
     journal = {Numerische Mathematik},
     pages = {384--393},
     publisher = {mathdoc},
     volume = {12},
     year = {1968},
     zbl = {0181.18004},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1968__12_131884/}
}