@article{NUMA_1970__14_131957,
     author = {R.B. GUENTHER and E.L. ROETMAN},
     title = {Newton-Cotes {Formulae} in {n-Dimensions.}},
     journal = {Numerische Mathematik},
     pages = {330--345},
     publisher = {mathdoc},
     volume = {14},
     year = {1970},
     zbl = {0181.17901},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1970__14_131957/}
}