@article{MZ_1974__138_172085,
     author = {Helmut Werner and Henry L. Loeb},
     title = {Optimal {Numerical} {Quadrature} in {Hp} {Spaces.}},
     journal = {Mathematische Zeitschrift},
     pages = {111--118},
     publisher = {mathdoc},
     volume = {138},
     year = {1974},
     zbl = {0276.65012},
     url = {http://geodesic.mathdoc.fr/item/MZ_1974__138_172085/}
}