@article{GDZPPN002037963, title = {On the error of compound quadrature formulas for r-convex functions.}, journal = {Aequationes mathematicae}, volume = {40}, year = {1990}, pages = {6-18}, zbl = {0698.41028}, url = {http://dml.mathdoc.fr/item/GDZPPN002037963} }
Köhler, Peter. On the error of compound quadrature formulas for r-convex functions.. Aequationes mathematicae, Tome 40 (1990) pp. 6-18. http://gdmltest.u-ga.fr/item/GDZPPN002037963/