@article{05726997,
title = {An optimal 3-point quadrature formula of closed type and error bounds.},
journal = {Revista Colombiana de Matem\'aticas},
volume = {42},
year = {2008},
pages = {209-220},
zbl = {1195.26036},
language = {en},
url = {http://dml.mathdoc.fr/item/05726997}
}
Ujević, Nenad; Mijić, Lucija. An optimal 3-point quadrature formula of closed type and error bounds.. Revista Colombiana de Matemáticas, Tome 42 (2008) pp. 209-220. http://gdmltest.u-ga.fr/item/05726997/