@article{1029002165,
author = {Dunkl, Charles F.},
title = {Discrete quadrature and bounds on $t$-designs.},
journal = {Michigan Math. J.},
volume = {26},
number = {1},
year = {1979},
pages = { 81-102},
language = {en},
url = {http://dml.mathdoc.fr/item/1029002165}
}
Dunkl, Charles F. Discrete quadrature and bounds on $t$-designs.. Michigan Math. J., Tome 26 (1979) no. 1, pp. 81-102. http://gdmltest.u-ga.fr/item/1029002165/