@article{PIM_2014_N_S_95_109_a1,
     author = {Abdullo R. Hayotov and Gradimir V. Milovanovi\'c and Kholmat M. Shadimetov},
     title = {Optimal {Quadrature} {Formula} in the {Sense} of {Sard} in $\mathbf{K_2(P_3)}$ {Space}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {29 },
     publisher = {mathdoc},
     volume = {_N_S_95},
     number = {109},
     year = {2014},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PIM_2014_N_S_95_109_a1/}
}