@article{00927122,
title = {Spline approximation and generalized Tur\'an quadratures.},
journal = {Portugaliae Mathematica. Nova S\'erie},
volume = {53},
year = {1996},
pages = {355-366},
zbl = {0857.41008},
language = {en},
url = {http://dml.mathdoc.fr/item/00927122}
}
Kovačević, M.A.; Milovanović, G.V. Spline approximation and generalized Turán quadratures.. Portugaliae Mathematica. Nova Série, Tome 53 (1996) pp. 355-366. http://gdmltest.u-ga.fr/item/00927122/