@article{NUMA_1992__62_1_133664,
     author = {Geno Nikolov},
     title = {On the monotonicity of sequences of quadrature formulae.},
     journal = {Numerische Mathematik},
     pages = {557--565},
     publisher = {mathdoc},
     volume = {62},
     number = {1},
     year = {1992},
     zbl = {0741.41024},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1992__62_1_133664/}
}